Recently my IBS has mainly caused a tendency to constipation but yesterday we went out for a carvery and I ate quite a lot of pork and this morning had the worst diarhoea I`ve had for ages. I had to take 5 loperamide to enable me to travel! I have had a bit of an upset stomach after eating pork in the past but nothing this bad (no-one else was affected so I don`t think there was anything wrong with it).
Oddly enough I am not affected by ham or bacon