Aww... I'm sorry you've been through so much! *hug* Hang in there! It sounds like you've been so preoccupied, you didn't have the time to really think about yourself and your weight. I'm sure the other 3FCers can help you out
I've only been in the game for a few years or so, and only on 3FC for about 1.5 months, but my tip: it might help if you bought a scale. It has a way of clarifying things that are going on with your body. It was a good resource to me, as I think it might be for you as well. You'll notice daily fluctuations, what makes you gain weight, what makes you lose weight, and how much.