When I first was diagnosed with tummy troubles, I read a certain tip in books and on the internet. I didn't take it. It seemed like a good idea for the really violently tummy troubled-but not me. I may have gone to the bathroom 20 times a day but I could always get there.
It was a me/them kind of thing. Yeah. I know. I am sorry.
Anyhow, have a bag of clothes, toilet paper, wet wipes and hand sanitizer in your vehicle and have one at work. Take my advice. Do it now. Also, when packing for a trip-pack an extra nightgown. (and extra pants too, obviously)