Femcon FE and pmdd

I am 21 years old and have never been on birth control before. I went to the doctor asking for yaz but she suggested i didn't take it because of the high level of potassium it has. I wanted yaz because i get severely depressed right before my period. But when i told the doctor about my cramps she suggested Femcon FE. So i said sure why not! I've only been on it for 2 1/2 weeks and I've have breakthrough bleeding for the past 3 days now, and i woke up 4am with the worst cramps in my entire life! i was in so much pain i vomited! finally i was able to sleep...and when i woke up i called the doctor and she said she could write me a prescription for the cramps, but i said no since they went away. Also I've never been so depressed! and this is coming from a girl who has fought depression for years. I'm on my spring break now and i don't want to do anything but cry cry cry! i feel bad for my boyfriend and my mom having to deal with me. Even I'm getting annoyed with myself! I had high expectations for birth control, i thought it would change my life and help out with PMDD. I really hope this changes, I'll let you know what happens cause I'm going to stick it out for the next 3 months! If anyone could suggest another pill just in case i still hate it in 3 months, that would be very helpful!