One of the original reasons I went on birth control (actually, a major reason both times I went on it) was to even out my moods during the month. Right before and during my period, I had horrible, horrible mood swings. It evened it out a lot..not completely, but did really help. I'm already dealing with depression, so I don't think my birth control contributed to that. I also didn't put on any weight... My bosom didn't even change sizes.
I'm sorry if you had those side affects