I had a TT and removal of 1 PT (11/18/10). I had Hashimoto's for 20 yrs. and was taking 150mcg. Since surgery the Dr's P.A. has lowered to 125, and now to 112 mcg. I have tingling and numbness in my left arm, cold hands and feet and am extremely tired. I am confused because the test results show low TSH (.008). The P.A. tells me that I am basically hyperthyroid. Please explain why I have no thyroid and they are giving me less synthroid now.