bladder issues/problems

[KnottedYet]

Irritation to the opening of the urethra can cause a desperate urge to pee, also.
If the irritation gets intense, it can cause the bladder to spasm.

Is your chamois folding or bunching up? Is the chamois too thick? Is there too much padding with the saddle/chamois combo, so that it begins to irritate on longer rides? Are your shorts too small? Is the waist of your shorts too low cut (dragging the shorts upward as you ride)? Are you tilting your pelvis too far forward as rides get longer? Did you raise your saddle or lower your bars? Did you get a new saddle? Does your saddle fit properly?

If it continues to happen on rides, it might be a good idea to contact the doctor again and get cleared to see a pelvic physical therapist. Most of them also do sports med, which would be a good combination. If it starts to happen in situations other than rides, your doctor would probably send you to a urologist.