Urgency is enough of a problem, but add in IBS, and life can get very difficult indeed. I was reduced to tears when pleading for access to a loo in Specsavers, I was told I would have to wait while they asked the manager, and she refused me, claiming 'health and safety'. It was utterly humiliating, in front of all the other customers.
Motorway jams are really nerve wracking, on one holiday in France I was forced to abandon the car, lie on the verge to roll under the barrier, and then down a slope to find somewhere among the trees, hoping that when I re-emerged the queue would not have suddenly disappeared!