I was having internal vibrations only at night as well for a long time. I’ve been ramping up vitamin B 12 and noticed I haven’t had any in a while now. You might consider a good B COMPLEX - take every day and see if they subside. I also take an extra B 12. A B deficiency can wreak havoc on the body.

Hello. I'm sorry to hear you're suffering from internal tremors. I know how uncomfortable and scary this can be.

Have you looked into the possibility of your internal tremors resulting as a side effect of gabapentin? If not, I'd begin there. A brief Google search will provide more info on this.

Agreed about the B 12 and B complex recommendation below. Why not start with this, since it's low hanging fruit? If it helps, great. If not, you'll keep seeking answers.

I too have this issue. It started exactly as you describe but has progressed over a period of months. For me, it's an issue related to dysautonomia (dysregulated autonomic nervous system [ANS]). You may want to begin researching this condition. You may also want to read about Postural Orthostatic Tachycardia Syndrome (POTS) and Mast Cell Activation Syndrome (MCAS) and see if anything rings true for you, since people with these conditions have reported experiencing internal tremors. Personally, I see a definite correlation between my internal tremors/vibrations and my digestion, probably due to SIBO, for which I have tested positive. I believe this is related to the vagus nerve. If you don't know anything about the vagus nerve, it's worth learning about. There are many books available through the public library in both a print and ebook format on all of these topics.

Internal tremors have also been reported by a large number of people suffering from long covid, possibly due to issues with the ANS.

I wish I could be more optimist about your doctor's visit but I have learned through experience that even very competent doctors can be clueless about this condition. It's just not something that's easy to understand or treat. You will have to be your own advocate and, through your research and self-advocacy, there's a strong chance you will find answers and treatment.

I wish you the best of luck in your healing journey.

Have you found anything out yet or recommendations?

@kurtkurt1029
Hopefully you have found some answers by now. I was plagued by internal vibrations for about a year. I think I may have found the culprit causing mine, but it took a while getting there. If you found the person on here talking about waking up several times in the middle of the night to cover up a little dog, thinking it was him shivering -- that was me. I was apalled to find out it wasn't him because that only left me. I went the round-a-bout way of getting there, BUT, I was not drinking enough water. I am very active outside with yard and garden, even now at 75; plus I walk 2-3 miles a day. My electrolytes were getting out of balance constantly in the summer months but I did not realize, for me, that was causing the internal vibrations. I had no idea they existed, until I got on here looking up "internal vibrations." When I was laying on my back it felt like I was in a vibrating bed. I had no idea it was me. I started searching everything dealing with gastroparesis, but no link to internal vibrations, then I thought I would try a "liver support," pill to see if @72 my liver could use some support. I tried a pill put out by Live Conscious, for liver and metabolic support, called "Liverwell." The first day I took just one capsule -- I was doing some paperwork about 45 minutes after taking it and I realized I had no vibrations in my shoulders and back. I thought it was a fluke, but 2 days later I had no vibrations. You are only supposed to take this stuff 3-4 months at a time and take 4-6 weeks off. When I stopped taking them I got some brief spurts of vibrations again, BUT, realized when I was not taking Liverwell, I also was not drinking the 2-3 quarts of water a day that I need. It has worked like clockwork since. If I start feeling vibrations, I grab a Smart Water to help balance on my electrolytes and I force myself to drink more water. At 75, you don't feel like drinking 2-3 quarts a day, not to mention if you don't get it in before 6 p.m. at night, I am awakened by a full bladder screaming at me, & at this age waking up in the middle of the night, often means staying awake!!
So, I would suggest trying something so simple -- Smart Water, Gatorade, if your sweating a lot to balance out your electrolytes and whatever amount of water you are supposed to drink for your age and weight. Then keep up on that daily water, because when I slack off, I will feel slight vibrations trying to return. Otherwise they are GONE, 100%.