Welcome to the forums Bella_. Do you drink alot? Because when we drink alot of amounts of water we tend to have to stop and use the toilet. Relax deep breath if worst comes to worse take something to go in that is small. Could time yourself if you know when you need to go to the loo. Have rest stops. Stupid question but when was the last time you wet yourself? If it was ages ago, I wouldn't worry. But if you still feel like your going to wet yourself get checked out by a nurse doctor GP. Try not to worry if you wet yourself which i don't think so make sure you have a spare change of pants. It's ok.....