This sounds so dumb, but I study on the toilet. I mean, I'm spending so much time in there - why not?I have an hour break between my first two classes a couple days a week, which I specifically designed so I'd have time to get over any attacks that happen in the first class! (my IBS is worst in the morning)...sometimes I spend half of that break in the loo, so I just go to the most private bathroom I can find on campus, sit in a stall, and whip out my notebook. I have to study, and I have to poo - why not do both at once?
I know IBS is tiring, though - I like the suggestion about a multivitamin. That's the first thing I suggest to anyone who is having fatigue problems, because just taking vitamins has helped me transition off of the coffee I used to drink every day (but can only drink sparingly now because of my D).If a regular multi doesn't work, you could try a B-complex vitamin in addition. They're supposed to be good for energy.Good luck on your exams!