I have the same problem with hamburgers!! I went to Ruby Tuesday's two weeks ago and I had a hamburger and about 10 minutes later I had to go home. What a pain because I was in the mall and really wanted to shop a little more!!
Red meat seems to bother me a lot lately. Oh, I just thought of another incident, I was over my sister-in-law's and she made filet mignon and right after dinner I had to run to the bathroom. It was terrible, her and my brother were having a party for my nephew's b-day and there were so many people there, I was so embarrassed!! Now everyone knows I have IBS!!