Creatine does not make you hold the subQ H20 that is commonly thought of with AS related edema or H20 retention. Creatine increases intramuscular H20 retention which is a desired effect.
Creatine does not bloat you or make you fat, these are myths perpetuated by newbies or the uninformed. The trick with creatine is not to overdo it, most of us can get by with 5-10g post workout only (maintenance phase), once saturation has occured.