Oh wow, that has to be SO hard. I'm sorry.
Do you happen to know how many calories you take in? I have found
http://www.fitday.com to be invaluable in helping me track what I eat. You may either be eating more calories than you think, or (conversely) eating far too few, and thus confusing your body into thinking it's starving.
Are your clothes looser? You may be losing fat but building up your muscle, even through non-weight-training exercise. Because muscle is denser than fat, you can be more fit and toned, and smaller, than you were, with the same weight showing up on the scale.
Barring all that, have you considered visiting a doctor or nutritionist? Just a thought. Good luck, and welcome!