43 y/m new to small fiber neuropathy - help answer some questions?

Posted by immuno1982 @immuno1982, Nov 23, 2025

Hello

Question 1
Had a skin biopsy result of 5.4 fibers/mm in distal leg. While this is slightly above the normal threshold of 4.6 fibers/mm (5th percentile) for my gender (male) and age bracket (40-59) by John Hopkins. My gradient is super high from proximal thigh to distal leg (3.15:1) with 17 fibers/mm at the proximal thigh. Importantly, I have classic SFN symptoms all over my body so I really feel I have SFN. Blood work has not been too eventual with the exception of a low vitamin D and low VEGF but not sure that is the cause of this. I would say I am idiopathic NLD SFN. I'm assuming it's safe to say this even with a very low normal result. Agree?

Question 2
Can anyone relate to symptom onset that started as achy and fatigued fingers then hands then legs (never return to normal) then forearms prior to the classic SFN symptoms of burning, nerve sharp pains, itching, prickly feelings, etc? I also do get some skin rashes on my neck, face cheeks, and behind ear. This has happened in a span of 5 months. EMG was normal and MRI have some things to say but nothing to explain my symptoms.

Question 3
I read up on small fiber neuropathy. Is it true that most people have mild forms (particularly idiopathic NLD SFN) and are stable or improve? I know people who tend to stick around message boards probably are ones who are still struggling with finding answers and people who do improve or have mild forms may not go to the message boards often so it may be a difficult question to ask, particularly here. I am trying to figure out what to expect especially being idiopathic (I'm sure people who find causes have a chance to get better but I'm more interested in the truly idiopathic cases). I am the only provider for my family and I can't be disabled. Luckily I work from home and work on a computer but I do have some concerns with my hands as my fingers do get some numbness and discomfort in them throughout the day (compression gloves help) and especially at night when I sleep.

Question 4
I am also nervous about trying Lyrica or gabapentin, although Lyrica would probably be my choice when the time comes. Any positive experience with Lyrica on helping with burning and achy pain and itchy discomfort? I had a bad experience with Cymbalta (was on the verge of hallucinating). My first neuro put me on this without investigating anything....

Question 5
For most people who experience pain, burning, and itching (my most problematic areas), do these come in flares? are there periods where you feel somewhat normal or is it mostly all the time? If they started as flares, would the flares eventually become consistent?

Question 6
For idiopathic NLD SFN, how is the progression? Can I expect it to be mild for 10 years or so given my age? It's probably too varied to really know I'm assuming. I started with hand issues and recently my fingers would hurt and feel numb when I'm sleeping..also noticed that the buzzing in the tips of my fingers have also showed up now on the side of my fingers just a little below. Is it possible for my finger and hand issues won't progress in any significant manner for the next 5 years or so? Will it work towards a non-functional hand?

I APPRECIATE ANY FEEDBACK

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Profile picture for rivermaya34 @rivermaya34

@immuno1982 Dear Friend, Welcome to a wonderful community of people who offer a lot of support and encouragement for a plethora of things! Let me first just say this - everyone's struggle is different, so no two people are exactly alike in this. I am a fellow idiopathic SFN sufferer and my journey is completely non-textbook in just about every way. I originally posted my story on here years ago, but a lot has changed since then and I'm not sure how to find it anyhow (@johnbishop is a great resource for this). But, I'll be glad to answer your questions to the best of my ability. I am 35 btw, and my journey started around age 19 but I never dealt with it until I was in my early 20's (and I still see my neurologist regularly). Here goes...

Question #1 - Agree! Remember, you are the only one who is inside your body and can recognize the red flags. Sometimes, the proof is NOT in the pudding...My neurologist trusted my gut enough to know what it was and he did skin biopsies merely as a formality (which didn't lie). It was a small hand problem that erupted, and my hand Dr that recognized the bigger problem(s) and after multiple surgeries I found my current neurologist, who's a godsend.

Question #2 - I didn't have any of those symptoms initially, but mine did progress & spread over time. But, add CRPS into the mix of things and it's bound to happen. Plus, I have 3x different types of neuropathies + ALS4 etc that make it complex. In the beginning, I had right hand weakness and weak fingers plus minor numbness.

Question #3 - Everyone is different. I'm sure the stats reflect a bigger % re: majority of "normal" types, symptoms, etc. I fit every minority percentile there is, unfortunately (and yet vice versa, bc I can relate to the non-conformers per se, lol). Personally, I'll never stop doing my own research, looking for answers / new remedies, pushing my Dr's and being my own advocate. A lifelong struggle naturally calls for such means. My neurologist did tell me that typically, yes, most people have minor forms and can manage it OK w/o being too disabling. I'm headed in the opposite direction, and mine has always been severe (for the majority, not initially). There are many ways to get adaptfully creative, so don't lose hope there. I'll probably be in my 50's (or sooner - no telling) when my disease fully takes over, so I'm just doing the best I can with the time that I have left. The other thing I'll say here - everyday is different and the struggles (or not) that come with it. I'd encourage you to remain optimistic and wakeup everyday having no expectations, minus the basic one i.e. that you have SFN. It's not a curse, tho some days it may feel that way (I've been there). You have many people who understand and will help you in any way that we can. We gotcha friend!

Question #4 - Lyrica = Cymbalta (they are one and the same). I have never taken Lyrica, so I cannot vouch for it one way or another. I've heard mixed things about it. Now, I have been on Gaba for years and I have mixed feelings because it is the one medication (in tandem w/ other measures) that really helped my pain levels, but it comes with nasty withdrawal symptoms if you don't take it on time because it doesn't keep a therapeutic dose in your system. I am currently trying to get off it for the third time (for personal reasons) and have been unsuccessful thus far, but I'm not giving up. However, it has 0 contraindications with other medications so it is entirely safe and no major symptoms besides (for me) some problems with mental clarity, but it's definitely tolerable and worth it. I'd also suggest looking into Lamotrigine (Lamictal) and / or Levetiracetam - there are regular and ER versions for both meds - those are the other two that have helped me, and can be safely taken in combination w/ Gabapentin (not all 3 together - 1 or the other w/ Gaba, I mean). Also, Gaba can be taken safely in pretty high doses daily, but the bad thing comes when tapering down (takes longer, I mean). Just fyi.

Question #5 - Flares usually occur because they are triggered by something (may not always know). For me, I've had both - i.e. flares that started w/o any identifying factors and others bc of skin sensitivity, etc (things I knew would trigger it). They will come and go - mine are not regular (e.g. every month), but they are as far as knowing what to expect once they start and how long they'll last. But, that's me. It is absolutely possible to have periods of time where symptoms don't feel so severe and you can function more normally, yes.

Question #6 - The progression is statistically slower than other types - e.g. large fiber neuropathies, but mine was exacerbated pretty quickly. The first few years of mine were "slow," but I was aware of the progressions. Unfortunately, the combo of CRPS + other neuropathies quickly sent it over a cliff; so, I was kinda doomed. Hopefully for you, that will not be the case. You have a lot going for you and there are a lot of options you have to try that may greatly increase your quality of life. It's knowing what to fill your toolbox with. I certainly have numerous suggestions if you're interested. Feel free to DM me if you want to talk more in depth.

Hope this helps!! 🙃

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Dear @rivermaya34

I am in awe reading your story and your comments! Girl, where do get that spirit from?

My heart goes out to you! Big hug!

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Profile picture for pennycurious1 @pennycurious1

Dear @rivermaya34

I am in awe reading your story and your comments! Girl, where do get that spirit from?

My heart goes out to you! Big hug!

Jump to this post

@pennycurious1 You are so kind!! 🙂 I may have my own spirit, but the real inner strength I have is not my own. I guess a life full of darkness from the beginning caused me to see the light pretty early and hold onto it without letting go. I'm actually writing a book(s) as we speak that I intend to publish soonish. I'm so used to walking through fire that I guess I just consider this season a different flavor of the koolaid (the good kind lol). Good days 'n' bad days for sure - I still get phased and fall down sometimes, but I know where my help comes from and my story is not my own. I exist to serve and encourage others. I'm privileged to be able to share anything from my life experiences that might help someone who is suffering. Thank you for your kind words - I really do appreciate it. So glad you're here!! Hugs back!

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