Is this a symptom of Thoracic outlet syndrome???
 

I was diagnosed with Thoracic outlet syndrome about 2 months ago, my symptoms have always been pain in neck and shoulders with weakness in forearms and arms feeling heavy especially when doing any activity with arms. Some numbness in fingers occasionally. Here recently I have been having extremely aggravating muscle twitches in my thigh muscle and my upper arm muscle only on the right side, none at all in my left side. So I was wondering if anyone else has had this issue/symptom, because it is driving me nuts?

Yes, I have muscle spasms all over, especially in the upper back and shoulders, but also in lower body muscles.

TOS can cause all kinds of symptoms.

Are you doing botox, PT, medications??? I suggest looking into botox asap - it is amazing.

muscle twitching with TOS
 

I have had muscle spasms, twitching for a long time. My left arm adduction often with arm, hand performs a waiters tip deformity. Diagnosed with cervical rib three days ago, and surgery set. 8-1-16. Pray this finally ends years of pain, twitching

I had dealt with this too, but on the left side only! Finally having surgery Aug. 1 for TOS. First rib resection.