protein shakes

just like the title says when is the best time to use Creatine. I bought a couple tubs of the stuff and it was really cheap it only cost me $15 each it's a white powder and I mix it in with my water and drink it. I also mix it with my protein shake sometimes. I'm looking for the most awesome way...

I'm getting a bunch of side effects when I drink these protein shakes. I get diarrhea, bloating, and upset stomach from them. I'm trying to get enough calories my goal is to get 3800 calories a day and I don't want to lose my muscle. I always fall short and I end up having a drink a couple of...