Usually functional disorders of the GI tract are not associated with joint issues (IBS).There are tons of reasons to have a joint issue.The only thing GI wise that is associated with joint problems are autoimmune disorders of any sort (including the gut) primarily because if you have one, you often have more than one and the joints are a common target for this.As long as your Sedimentation rate on your routine blood tests is normal (except when you have an infection of course) then the likelyhood of autoimmune issues is quite low.People with IBS often have other chronic issues, it doesn't make them related.K.