The majority of the control for your immune system is in your intestines. If your immune system is on the fritz, your intestines should be on the fritz.

I started out many years ago with vicious IBS. I knew every bathroom, everywhere I went, and was panicked if I had to go too far from any of them. My world became so limited, and while working on an ambulance, its not a good idea to have to turn over CPR to a partner because its either find a potty or pass out. I only had to do that once to make me seek tummy help.