I would look at diet. You may be eating something you have a reaction to. Or if you have an overgrowth of bad gut bugs - candida being the most common - any sugars and starches can bloat you up.
Diagnosed with ulcerative colitis spring 1999
Therapeutic dose sulfasalazine.
Probiotics, l-glutamine and fish oil caps. George's aloe vera juice and Mucosaheal.