i am under drugs for hypothyroidism since 2004,dec.recently i have picked up some grave symptoms-i feel hard to speak,my voice chokes,my head spins,total reading disorientation,breathing problems,excessive sweating,facial pain and stiffness.do this symptoms occur with anyone of you or i am heading towards something really dangerous consequences or my disease aggravating even though my thyroxine-100mcg tablets is being administered properly!!!!!!!!!!