Seems this is more common than I previously thought. I have this problem with my wife and it has been going on for the past 3 years or more - I lose track of time. When it first began I had her tested for an infection but that was not the case. The doctor called it an overactive bladder and prescribed a drug. Side effects were not good so we stopped using. On a road trip last summer she went for about 5 hours without going to the bathroom, at other times she uses the bathroom very frequently. Before going for a walk or for groceries, she will want to visit the bathroom 3 or 4 times. It has become so routine we just live with it.