I get pains on both sides. Your colon actually covers both sides of your abdomen and comes up in the middle (sort of like a horseshoe). If you sister has Crohn's your chances are much greater than the average person. Have you had any tests to check for it (colonoscopy with biopsy)? Right sided pain (LRQ) is not as common as left sided pain (LLQ) in IBS. The reason right sided pain suspects Crohn's is because the most popular place for problems in Crohn's is in your ileum or terminal ileum.
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