hashimoto's disease
"After being diagnosed with Hashimoto's (awful ideopathic urticaria/welts from being touched), I was told to try generic Synthroid.  My rashes disappeared.  Months later, I did a self-trial and came to find out it caused my awful acid reflux (so bad I was screaming and wrenching in pain), so it was a choice of off Synthroid totally or try Tirosint.  My TSH and other levels are great and no more daily acid relux.  Thank you, Tirosint!"