I took 75 cmg of Synthroid after having my thyroid destroyed by r...

I took 75 cmg of Synthroid after having my thyroid destroyed by radiation, then two months later dropped to 50 cmg. Within a month I was hospitalized for atrial fibrillation. The Synthroid was reduced to 37 cmg by my physician. I am experiencing dramatic hair loss and want an alternative to this poison that has ruined my heart as well as my appearance. In less than two weeks, I have gained 3 pounds. I should have left the thyoid alone but three "experts" said the hyperthyroidism would kill me. I had lost 14 pounds and had a thick gorgeous head of hair. Thanks to Synthroid, I am fatter and have gross hair loss. What hair I have is dry and thinning.