Do any conditions make you lose & gain weight quickly?

Well being on steroids is not a good thing it can cause all sorts of problems as you get older I'm not saying anything bad its just best that you think about your health if you want to lose weight the best solution is to just cut down in your eating style eat breakfast and lunch but dinner time you just eat a small portion I use to weigh 209 pounds now I weigh 185 in just two weeks u should try it but also excercise at least three times in a day