Level of stress symptoms and conditions

Hi.
I was on Yasmin for about 9 months and stopped taking it about a year ago. I had been on a few other pills in the past while in college and always had problems. When I was given Yasmin it was after an abortion and my doctor and I agreed that maybe it was time to give Birth Control one more chance. Since I had had such a bad time with the pill in the past we went with a low dosage (Yasmin).
I have always had great skin but around 22 I started to have adult acne... mostly attributed to the high level of stress I am always under with work and all. Yasmin worked great in getting my skin back on track, my periods were definitely shorter and lighter. I have always been prone to terrible cramps and heavy bleeding. The pill was great for the first two months or so. Soon I started to notice that I was gaining wait despite the fact that I eat really well and really don't eat more than I ever did before. I had 0 sex drive to the point that I started finding ways to avoid having sex with my boyfriend....at one point we did not have sex for 2.5 months. He was an angel and never really complained. But I started to have a problem with it. And it seemed I had a problem with just about everything. I was overly emotional and having rage fits and would just pick fights with him and anyone I could get my hands on. I didn't develop out of the blue migraines.... but my headaches became more severe and frequent. While I was feeling this way I knew it was irrational and unprovoked and made little to no sense but I just couldn't stop. I felt like it wasn't me anymore. I didn't understand the things that I was feeling. I was reacting and behaving in a way that was just uncharacteristic of me. And then I also started spotting every month towards the end.
One day I just decided... I had to stop right away. But I was worried about going off of the pill. I switched to something else and that switch made me feel even worst and I just couldn't deal anymore. I had to be free of these awful feelings.
At first I felt better right away. My period was still lighter and less painful than it had been before Yasmin. It was as if I had never been on Yasmin at all. I lost 15 pounds right away and have kept them off.
About three months after I stopped my periods became painful again (I expected this would eventually return).... but worst... I started getting my periods really late. In June it was two weeks late. I took so many pregnancy tests that all were negative but still my period would not come. I called my doctor and she said it was probably the heat. Apparently this happens to some women in the summer when its too hot. But I am indoors all day at work so it just didn't make sense. Then July... same thing... two weeks late.... August same thing. but exactly two weeks. ( I always get it on a Sunday after being on the pill)
Then September... it was only a week late so I thought Oh! maybe I am getting back on track. mind you this whole time I am ovulating on time... so I am PMSing for a really long time. Then October roles around and I'm two weeks late again... and November only a week and four days late... got it on a Thursday night out with friends.
Now I don't know if this has anything at all to do with the fact that I was on Yasmin. It might be totally unrelated.. but since no one had mentioned it I just wanted to ask if anyone had experienced anything like it?