Hello, I am 20 years old and recently started taking Loestrin 24fe. To be honest, I feel GREAT! My breasts are getting bigger and I have gained a few lbs, but I don't mind the weight and am actually trying to gain at least 5-10lbs. I was on Yaz for almost a year and experienced TERRIBLE side effects, I was reading some of the posts below and I have to agree with the side effects of Yaz, I was extremely anxious, I experienced SEVERAL panic attacks and felt absolutely terrible. When I finally got off Yaz I lost almost 8lbs and could not gain any weight back. I am on my first week on Loestrin and so far feel fine (knock on wood). I really appreciate everyone who posted and will definitely keep posting on my future experience with Loestrin.