Running makes me need the toilet if I am not totally cleared out beforehand. For long distance races I take an Imodium beforehand to ensure I can run with relative peace of mind. Had an evening 5 mile race this week which is never good news, as obviously my stomach has to contend with the day's food intake. I did not take Imodium which may have been a contributor. I had terrible cramps a few minutes in, but tried to run through them, after stopping for a couple of seconds. Just short of the sprint to the finish line my poor bowel reacted. It was utterly hideous. I have no idea if anyone noticed but I had to rush off as soon as I finished the race.
Just awful!! If anyone has any advice or similar stories I would love to hear them.