I am seeing an endocrinologist for hyperthyroidism. He did additional bloodwork aside from my doc ( who did the referral ) which confirmed an overactive thyroid. My endo prescribed tapazole 10 mg three times a day. After a couple days of taking it I have a stiff neck (right side).. almost like a burning sensation that is on the back of my neck and radiates to the bottom/base of my head (right side). It has been a 7 days of taking the tapszole. He is sending me for bloodwork every two weeks but I won't seem him until April ( unless something in the bloodwork warrants his attention). He did say muscle pain is a side effect. My first round of blood work is one week from now (he wants me to take two weeks of the tapazole first then do the first blood work). I'm thinking to calling his office and seeing him right after he gets my results from the blood work. In the meantime time what do I do with this pain in the neck ? Please help !?!? Any suggestions ?!?