Prozac and little understanding

I went on prozac for the first time when I was 22. It was just after I'd finished doing a degree in Japanese at University and it was just too hard for me and I ended up burning out a little. Looking back I don't think I was ever overly depressed - I just needed a little understanding and support, but I didn't really have much emotional support around me at that time in my life, so taking a drug seemed to be the answer.....or was it?
I gained 20 kilos. It took me a whole year to lose it after i stopped taking the prozac. To anyone who says that on prozac you don't gain weight, you lose it - what rubbish!! How do I know? I took prozac again when I was 25 - as a result of a broken relationship and I gained about 15 kilos the second time around. This time, it's taken me 3 years to lose the weight!! So, I know for a fact that prozac causes weight gain. Nobody can tell me that both times were coincidental or as a result of the depression itself, it happened only when I went on prozac - not when I was just depressed. I will never take it again and instead of feeling depressed when things go wrong in my life, I exercise. It's been one of the only things that has truly put me on a 'high' naturally. It's great. I would take it any day over prozac. Sure, prozac made me feel high, but it never felt natural to me. And I was unnaturally overweight on prozac as well. I'm now nearly 30 and can honestly say that the only times in my life when I've been overweight was when I was on prozac.