Niky, I'm hoping someone with more experience with creatine comes along. I've never heard of anything like what you describe happening with this supplement. Most general warnings about creatine are to be sure you drink extra water as it is dehydrating and to not drink alcohol within 2-3 hours of taking creatine (also be alcohol is dehydrating). But that's it.

Is your creatine just creatine? Nothing extra added to it?

Nat