I started Yasmin about 5 months ago and thought I had no side effects. Did not gain a single pound and didnt really think my mood changed. The only weird side effect i did have is gas and bloating. Now at first I didnt think it was due to Yasmin so I went through an array of tests for gastro-intestinal problems and finally made the connection because I took yasmin at night and only had those problems at night. Never ever during the day. Oh yeah and the migraines. I would get them for about 5 days straight. It was really annoying to have to deal with. Now I will definitely switch to Alesse although I am questioning that alternative as it may be just better for me to not be on any birth control. And I do want to say that not everyone will have these random side effects. A few of my friends are using Yasmin and are absolutely satisfied. (their side effects: no weight gain and breast enlargement...what more could you want!! :) )