My understanding that Hyperthyroidism (or high thyroid) went with MG, but not so much what I have which is Hypothyroidism (low thyroid). I still feel like anxiety is a big part of this. I am feeling better each day (without meds), although the twitching is still present. Do you know if they people who have muscle twitching with MG also have weakness. I don't think I have weakness associated with it. I have been able to function and do all of my normal daily activities. I am a band teacher so I have to project my voice all day, and haven't had any issues there also. I just think I need to relax some how.