[Brena]

I had Grave's Disease and my thyroid was removed. I have been on 88MCG Synthroid dosage for 9 years. That amount is appropriate for my body weight. My lab work has always been all over the board. Now I am hyperthyroid and may have to reduce my dosage. I am reluctant to do that as in the past I became extremely ill when the dosage was adjusted. Are there other factors which would cause synthroid to be absorbed more? I know in the past calcium and iron interfered with absorption and I became hypo. Can something in my lifestyle cause me to be hyper? I have not yet displayed symtoms such as palpitations, weight loss, or shaking.