I'm so sorry, that's rough. I don't know what's best for your situation, but if your boss is somewhat understanding, you could try using sick time if you're half an hour late or more. That's what I might do - ibs definitely counts as a medical condition. I haven't had that particular problem. However I do have a lot of flatulence and it's really frustrating. Sometimes I can't be around other people. I share an office with someone so I hope it doesn't affect her. I use air freshener.

Have you tried diet adjustment to improve your IBS symptoms? I looked at your profile and your health concerns. I ave also been depressed and overweight (I'm not anymore) so I sympathize. When I decreased stress in my life, began eating more natural foods and more fiber, exercised more and lost weight, my IBS symptoms have really improved. You may already know these things so please forgive me if this is old news. I especially recommend a fiber supplement - I take pure psyllium husks with no additives every day - it eliminated stomach pain for both me and my dad who also has IBS. Also as you may know, IBS can be very connected to stress. Have you looked into stress-reduction techniques? I hope this helps.