I was diagnosed thing hypothyroidism a few months ago, since then I have been given levothyroxine, I have gained a stone in weight since diagnosis, my diet hasn't changed and I've never been this heavy. I have spoken to others with the same condition and they say they haven't gained weight, it's making me feel really bad as it's as if everyone thinks I'm just eating junk and piling on the pounds, which isn't true. Anyone with an interactive thyroid, did you gain weight?