I first started receiving the shot as a teenager (for 2 years) and the only side effect I experienced was no periods, which is what I wanted. I started back on it 5 years ago after trying 2 other types of BC that I did not like. Once again, my periods stopped, but this time I also gained about 30 lbs, my breasts grew, and I suffered from excessive sweating/ hot flashes. The weight gain was no issue to me since I have always been very tall and skinny. Putting on some extra weight was a plus. It was the constant sweating and hot flashes that made me stop taking the shot. I would even sweat from my head and *down there*, which I never used to before. It was very embarrassing and difficult for me to control. I was showering 3-4 times a day in between trying to work and go to school. Not to mention all of the different types of deodorant I had to try to remedy this issue. If I can find a viable solution, I would most definitely restart this BC.