Sorry you're feeling so crummy, TM. As you know, we've been dealing with this issue with difficult child 1 a lot lately. First it was his Crohn's, and now that it's in remission, he gets to deal with IBS. It totally hoovers. At least his school is understanding when he misses the umpteenth class because he's stuck in the boys' bathroom. But most people just cannot grasp what it truly means to have a life affected by chronic illness. They expect that when you are sick, you get better and move on! They just cannot wrap their heads around something that doesn't go away.
Hope you're feeling better today!