I have ridiculous tension in my body, the worst part is that sometimes I will go for months on end with intense chest pounding and palpitations and I can even feel my heart pounding when its at a normal pulse rate. I also have TMJ issues and frequent twitching, etc. Doctors have told me its "just anxiety" however I wonder if the root cause here is something more. Does anyone have similar symptoms, have they found out how to fix it, cause I'm at a level so intense that the casual "just relax" concept doesn't work - I have to continually shake my leg just so I don't feel my chest pounding. Maybe this is hyperthyroidism, is that a symptom? It seems that the hyperthyroid can actually cause anxiety too, maybe its both?