Abbey. This can be part of aging in women, or it can be caused by pregnancies. It's called an "overactive bladder".
There are some new medications out for that that maybe you could ask your doctor about
My problem is that I don't necessarily recognize that my bladder is full until its an emergency. At that point, if I cough or sneeze, it can get outright nasty.
Mine's from scarring from the endo, but it can have many causes.