My stomach can't handle creatine any more for whatever reason, just goes right through me.
Make sure you are using a micronized version--preferably ultra-micronized. It the creatine sinks to the bottom of your glass after mixing--at all--it is not micronized finely enough. I have the same problem with non-micronized versions--gives me nausea, bloating, and general digestive difficulty, but if it is finely micronized, and I consume it with food, I have no issues at all.
Some good versions are...
creatine monohydrate
creatine magnesium chelate
creatine gluconate
..and there are several others, as well. But make sure you research whatever version you are considering taking, as not all of them can withstand stomach acid adequately, or fail to reach the muscles sufficiently. There have been tons of creatines which were at one time thought to be superior, but have since been shown to be worthless, or near worthless.
Lastly, if you have tried a few finely micronized and well absorbing forms of creatine (such as those listed above), yet still have some issues with it, try taking it with a meal--whichever meal produces a decent insulin spike. You don't have to take creatine with a sugar-only drink. As long as there is some insulin present, whether by way of food, drink, or exogenous insulin, the creatine you are using will still be transported to the muscles sufficiently, regardless of whether your meal contains proteins and/or fats.
One more thing. You don't need more than about 3-5 grams per day, on a daily basis, to keep creatine stores full (it takes about 30 days to get there). Taking large doses at once can potentially cause stomach problems, so you might want to stick with 5 grams daily and see how that goes. 5 grams is generally sufficient for maximizing creatine stores even in 250+ lb bodybuilders.