hello, i'm a 20-year-old female and i think i might have IBS. it started about a month ago when i had a frequent urge to burp, which was foreign to me. soon thereafter, i began to experience stomach bloating, especially right after meals. so i decided to visit a doctor, who said "it could be anything..." and gave me prevacid which i took for awhile, but stopped taking because it didn't really seem to help the burping or bloating. however, the doctor did mention it could be IBS, but at the time i did not have diarrhea or constipation. later, i did begin to experience constipation, and i felt stopped up and a need to relieve myself, but i couldn't go. after about 4 or 5 days, the stomach discomfort had gotten to be too much, so i took a dulcolax at about 11:30 one night, only to wake up at 6am with probably the most painful stomach pain i have ever experienced, and had to sit on the toilet nearly crying for 45 minutes while my bowels were flushed out.i work at cici's pizza, and i cannot even eat the pizza anymore because it causes so much bloating and discomfort. what i have it not "painful", just very uncomfortable, and i have never had health problems in the past, so this is worrying me. finally, after eating a meal at chick-fil-a (8 chicken nuggets and lemonade), i got so bloated that i nearly freaked out, but picked up a product called "digestive advantage: IBS" at the grocery store and have been taking it for about 4 days. i see improvement in the bloating and stool frequency/consistency, but i'm still worried that what i have may not be IBS, (could it be something more serious?)please help me. any help would be much appreciated.