apologize for bumping an old thread but i'm new here.
For years i've had a smaller right pec, lat, bicep, tricep, deltoid, quad, hamstring etc on my right side. Every muscle i have is smaller on my right than my left. My pec and lat also cramp up all the time just on the right side. I have scapular winging on my right but not my left. As another poster said earlier I also used to sleep on my right side with my arm under my pillow and I have all the same symptoms as he did. Does anyone have something similar going on? I just got an emg on my right arm and the doctor who did it said everything was fine. Frustrating to say the least. If anyone has any questions or info please give me a shout. Thanks