I've had a similar problem off and on for a few month's actually one of the reason's i went to the doctor in the first place before i got the geo c diagnosis actual 4months before they didn't really seem to think its a big deal i know they haven't addressed it really so im not sure if you should worry i'm still alive but you should get ahold of your doctor anyway so you can be sure!
and stool turned strange looking, so drink LOTS of water and see if it clears up. Also it will be oily if you have too much fat in your diet... which isn't good for the liver, so you need to cut