I am being treated for hyperthyroid, on and off actually. Still in the trial and error stage with the meds. I have some chest pains that are of the pinching type, here and there near lower collar bone sometimes left side and sometimes right side, that come and go for a very short time like 10 seconds maybe, nothing stays for a long period of time. Also below the sternum, upper stomach sometimes. Any input on this? I go to two doctors often for my thyroid but have not had this until now. They usually check my heart and vitals, etc.