I was in a unavoidable, inescapable terrible period of my life, and I went on Prozac. Had the weight gain side effect too,. I'll like to say it helped me through that period, in a bad way, where I got through it basically as a emotional zombie, where it quite literally felt like a fog. When I eventually got out and stopped taking it, I had bad mood swings for 2 months where I would become very irritable. I'm still mildly depressed many years later, but I feel more alive ever than when I was on those pills.