Hey, im a noob here, im 20, male and in uni with ibs-d.I was diagnosed with this about a year ago but the symptoms have been ongoing for about 3-4 years getting steadily worse.I've got the normal abodmin pain, blood in stool, gas attacks and nausea which i've recently found was caused by fatty foods (doctors gave me a food list with EVERYTHING on it except fatty foods...) cutting it out helped lots. Spicy foods don't affect me, neither does caffeine or alcohol.However. After starting a low fat diet i'm having difficultly walking? as in if i walk for more than about a mile or so i get INTENSE abodmin pain and regardless of what i've eaten i have blood in my stool for a couple of days afterwards?Does anyone else have this? if how how did you deal with it?from what i've read walking seems to help most people but not me :-(Edit;I forgot to mention; been for all the usual tests, not chrones, not colitus, not auto immune yada yada yada all negative tests.Been scoped up and down and all i was told was "non specific inflammation of the bowel"tried a bunch of pills like buscopan and other anti spazmoids that didnt help.