Bladder shyness is real.

A lot of people get shy when there are people around when they are peeing. They may find it will take a few seconds before their bladder relaxes and releases pee, or they may not be able able to pee at all when there's people around. This could be a sign of an anxiety disorder. If it gets really bad, there is actually behavioral therapy, support groups, or even drug therapy. Physical therapy may benefit people who have a hard time relaxing the pelvic floor.