Hello, I have frequent bloating for past 6 months, have had colonoscopy and endoscopy, started probiotics about 2 weeks ago, and just finished 7 days antibiotic treatment. Tonight, I took a sip of beer (I rarely drink anything) and immediately had a reaction of bloating, light headedness, dizziness, so tried to eat something to offset it and nothing helped. Even water was irritating, so after a couple of hours, Still feel high discomfort and pressure in mid abdomen. Did blood test for general food allergies all negative. But it really feels like I'm reacting to foods, like allergic response. Any thoughts? Thx