I have been rumbling, buzzing, tremoring, and shaking since January, so 8 plus months now. Yes!! It’s the worst when I first wake up. My whole body will rumble until I get up and move around a lot. I take 200mg gabapentin morning and night. 400mg daily. My neurologist has done two eegs and other tests. Everything comes back normal. I had to quit my old job because over exertion can make my symptoms bad for a week or more. But walking and being on my feet lessen my symptoms. It’s like my nervous system has PTSD. It’s tough because some doctors just think your crazy and it’s anxiety. Luckily some of my doctors believe me. One of my doctors literally doesn’t think I have long Covid. Luckily he is just a rehab doctor. I have had these internal full body vibrations ever sense I got Covid for months. Covid caused it. Also my teeth never stop chattering. Just because I can talk doctors just brush it off. I did a low histamine diet for awhile it helped. Then I slowly reintroduced food. Now I can eat normally. Except sometimes digesting food will give me pots. I also take 25mg hydroxyzine at night. I have been taking notes on my symptoms since the beginning and will post them soon to the internet. Just know it’s gets better. Sometimes it will come back and be real bad and then it gets better again. It’s a roller coaster. But I believe recovery is possible over long amounts of time and good diet. I am @covidlonghaul on Instagram.