I gained almost 20 pounds that I can't take off (usually i lose w...

I gained almost 20 pounds that I can't take off (usually i lose weight with just diet, and now I can't with both diet and exercise). Basically I have a period and cramps all the time, which leads to me needing about 14 hours of sleep a night. Caffeine no longer works for me in the morning to wake up. Sometimes I have headaches which last for two days. So basically I'm paying 120 every month so I can be fat, tired, and bleeding- indeed a fabulous birth control, since I feel very unattractive!