Just out of curiosity........why are you taking creatine? There are no long term studies on the effects of this so why would you take it? Other things I have found.........
Common side effects of creatine: intestinal cramping, diarrhea, increased urination, and dehydration. These might be explained by the high doses of creatine people take. Many companies require that you "load" creatine by taking high doses for the first five days. When these high doses of powder enter the stomach they draw water from the body, causing the intestine to contract. These high doses do not translate into higher creatine levels in your muscle. Instead, they may be the very cause of the side effects, including intestinal cramping, diarrhea, increased urination, and dehydration.
Also, resistance training does not necessarily mean that you should eat more protein. To find an estimate of your body's need:
1. Weight in pounds divided by 2.2 = weight in kg
2. Weight in kg x 0.8-1.8 gm/kg = protein gm.
Use a lower number if you are in good health and are sedentary (i.e., 0.8). Use a higher number (between 1 and 1.8) if you are under stress, are pregnant, are recovering from an illness, or if you are involved in consistent and intense weight or endurance training.
Example: 154 lb male who is a regular exerciser and lifts weights
154 lbs/2.2 = 70kg
70kg x 1.5 = 105 gm protein/day
I don't think that protein powder would contribute to UC.
Just my thoughts.