Extreme exhaustion after normal exertion?

This is the same for me except I'm 36. I was very active when I got covid July of 2020 and have been disabled ever since. Nothing showed up in ANY blood tests and doctors have basically written me off. However, recently there have been new insights to extreme fatigue and post-exertion malaise. They're finding that the resting lactic acid levels of some longcovid patients is very high. You should consider getting that checked, because if it is there's actually a very easy treatment for it. And if you have it but don't treat it, it looks like a self-perpetuating cycle. And if your lactic acid is high, you should get your ammonia levels checked.

I have a home lactic acid monitor made by Edge, and it's helping me see what activities are causing my lactic acid to spike and helping me manage what I can do in a day. It's been huge. I went from being in nearly constant pain and barely able to move around my house to actually being able to go out for a small birthday lunch at a restaurant with my parents and my husband. I haven't done that in three years!
I hope this helps. I've been telling everyone with longcovid about this because for some reason a lot of doctors haven't thought to check this. It's really ridiculous.

as a 73 year old with long covid (after a mild acute infection a year ago) I can assure you that you are not contagious. Covid messed up some of our physical systems, but, despite those problems, we're no longer able to transmit the virus.

I have read some responses, reading wears me out and typing even more so. Before all this covid my pcp was putting me through all sorts of heart testing to try to figure out my low energy/fatigue. Heart was fine. I guess it is all process of elimination. I got my second pf vaccine then two weeks later I was walking around like I was drunk, so unbalanced. My pcp ordered an MRI and carotid artery scan, very long story made short, I had 2 strokes and did not even know it until after the MRI. Carotid was clear. Then in January 2022 got covid from my husband. It has been downhill since, my low energy has turned to almost no energy. Have seen numerous specialists, all they want to do is pump you full of pills that make me want to sleep all day. Finally found a great physical therapist that is helping me deal with dizziness, which is new, he was actually explaining about dizziness. This short diddy took about an hour to type. I am 78 I was fairly active riding fourwheelers, gardening, etc, lucky now if I can do dishes or laundry.

I will see if I can get it checked. I am lactose intolerant. Do you know if taking lactaid is good of bad for lactic acid.
thank you for your help.

@lindalk you should definitely consider getting your lactic acid levels checked.
Symptoms of lactic acidosis include dizziness, extreme fatigue, shortness of breath, and more.

I have the same symptoms you have and all my cardiovascular stuff came back normal. It's only on the off-chance that my husband found all this new research about longcovid patients having elevated lactic acid.

If you have elevated lactic acid, you can go on the PRAL diet for kidney patients and drink alkaline water that is specifically paired with carbonate (not the sodium hydroxide, that doesn't have the right molecule you need. Brand name Body Armor has the right molecule).

Please please get this checked. It can be treated, but if it's not it self-perpetuates!

@lindalk you should definitely consider getting your lactic acid levels checked.
Symptoms of lactic acidosis include dizziness, extreme fatigue, shortness of breath, and more.

I have the same symptoms you have and all my cardiovascular stuff came back normal. It's only on the off-chance that my husband found all this new research about longcovid patients having elevated lactic acid.

If you have elevated lactic acid, you can go on the PRAL diet for kidney patients and drink alkaline water that is specifically paired with carbonate (not the sodium hydroxide, that doesn't have the right molecule you need. Brand name Body Armor has the right molecule).

Please please get this checked. It can be treated, but if it's not it self-perpetuates!

I have read some responses, reading wears me out and typing even more so. Before all this covid my pcp was putting me through all sorts of heart testing to try to figure out my low energy/fatigue. Heart was fine. I guess it is all process of elimination. I got my second pf vaccine then two weeks later I was walking around like I was drunk, so unbalanced. My pcp ordered an MRI and carotid artery scan, very long story made short, I had 2 strokes and did not even know it until after the MRI. Carotid was clear. Then in January 2022 got covid from my husband. It has been downhill since, my low energy has turned to almost no energy. Have seen numerous specialists, all they want to do is pump you full of pills that make me want to sleep all day. Finally found a great physical therapist that is helping me deal with dizziness, which is new, he was actually explaining about dizziness. This short diddy took about an hour to type. I am 78 I was fairly active riding fourwheelers, gardening, etc, lucky now if I can do dishes or laundry.

I have had all the vaccines for covid. In January of 2022 I got covid from my hubby. I ended up with extreme high BP (normally was low) in ICU. Very fatigued and in ICU for 6 days. Since then on high Bp meds. It has been very hard as like you I used to be very active. I am still very fatigued but little by little improving. Heart doc said high BP was related to covid. I also wanted to mention I also would het your thyroid checked to make sure your levels are o.k. Together we can get through this. This covid has been a hellish thing to deal with. Hugs and keep strong.