I know exactly how you feel. This started for me in 2020. It was initially only in my calves. I could see the twitching. It was like popcorn popping out of my skin. I went to Neurologist they did a emg that was negative. Mri of head negative blood work good. So did my own research and realized this can be triggered by stress and anxiety. I went back to my old self, working out and eating better it helped and I still get them all over but not nearly as bad. I put my health in God's hands. I pray alot and I pray for you.