I had Graves disease myself, I can tell you, she is on a roller coaster and if she does radioactive iodine, it may get a little worse before it gets better.
I recommend you read Ridha Arem's book on thyroid disease (very compassionate) and also read The Five Love Languages by Chapman (which will help you figure out how best to express your love to her).
When I was hyperthyroid, I felt like I was just fine, if all those OTHER people would just quit doing those things that were TICKING ME OFF! Lol. I didn't understand until later that - oh - maybe it was ME and not THEM!
That being said - your drinking sounds like a serious problem and I recommend you get yourself to AA and deal with it. Your W will respect you taking responsibility for that.
