This is a pretty normal pattern for IBS.Whenever you eat your colon has a peak of activity. In IBSers this may be exaggerated in response. Sometimes limiting size of meals, or limiting the greasiness of meals helps.While the doctor has a point, many of the meds for IBS
do work for some people for IBS so I think it may be time to try a new doctor, rather than get a new diagnosis. One that is willing to work through the treatments and find one that does work for you.Things you can try on your own. 300-600 mgs of Calcium Carbonate with meals helps some people. If you are at risk for kidney stones check with a doctor first.Peppermint tea or even a couple of altoids of the peppermint kind 20-30 minutes before a meal can dampen this down. Some people get luck using prescription antispamodics this way (rather than peppermint an herbal antispasmodic) or some people do a small dose of Imodium before meals or just morning and night. You want at dose that slows down the over-reaction without making you constipated. Peppermint may make heart burn worse.Various antidepressants (Because the nerves in the gut use serotonin too) may help with this particuarly the tricyclics, and there is always Lotronex, which works well for some very severe IBSers, but needs to be used only if other treatments fail.You may want to look at heathers
www.eatingforibs.com to see if she has other diet tips that may help.Some people do well with various mind-body techniques which alter how you respond to the GI symptoms and can for many people make the IBS much better.K.