@Crazy Hitch You should add some fruit and veg to your lunch. A small orange or half an apple sliced (if you put some lemon juice on the apple slices they will not turn brown). Celery, baby carrots, tomatoes, cucumber, spinach...get those vitamins and fiber in. Two rices cakes with cottage cheese is still not enough calories to count as a meal especially if you are still skipping breakfast. It is not good to skip breakfast as breakfast is the meal that gets your metabolism up and running; just do a Slimfast shake or something; they are not bad if you refrigerate them. Even then you should add something; yogurt, berries, a few more calories. Undereating just slows your metabolism. There are good recipes online to make a quick omelet/quiche in the microwave in a mug with egg spinach cheese for breakfast, and it is not bad calorie wise and quite tasty; I have done it in the past.

And I do wonder if you would be helped by taking the birth control pill if your cycles are all over the place and not regular. What is your age if I can ask? I know for some people the pill makes bipolar worse but for others it helps, and I can't help but wonder if having regular cycles might help you. Couldn't hurt to try?