Intense stomach pains after drinking sweet alcoholic beverages.?

Just wondering if anyone knows why I get servere stomach pains after I drink anything that's sweet and alcoholic, but only when those two are combined. The pain usually last for about 30mins or a little less, and will gradually subside if I drink water or eat some crackers. I have googled it, but haven't seen any real answers. Has anyone experienced the same and gone to a doctor? I'm weary to go myself so any info appreciated!