I'm 21 and Ive been taking birth control since I was 16 for depre...

I'm 21 and Ive been taking birth control since I was 16 for depression. I started with Yasmin, which after a bit lost its effectiveness - when yaz came out I switched to that. It was wonderful. I had been on it for about a year or so and Ive had problems with pelvic pain for awhile. I had a laparoscopy in November and my doctor switched me to Femcon, saying that I might just have a hormone imbalance and that would fix it right up. I haven't been so miserable in my entire life. I went out and bought a preg test because of all the breast tenderness, sickness, mood swings, weight gain and headaches I have all the time. I feel bad for my boyfriend having to get up in the middle of the night to console me when I cant sleep because Im so uncomfortable and nauseous. Im unhappy. And I get two periods a month, sometimes lasting for two weeks, I don't get it! I don't care what the waiting period is to switch back, I still have a box of yaz and Im switching tomorrow.