Nope. We can consider ourselves a pressure balanced vessel.
Early on in my incontinence journey, I asked a similar question about
this and got some great answers. Enjoy! Click the link below:
Incontinence - Physics Question Incontinence is affected by extra activity, more walking , more lifting, less frequent runs to the toilet, and fewer naps during the day. All of which you most likely experienced while on vacation.
Jeff (the still leaking one)