I have a well trained 6 year old brittany spaniel that is fixed. We recently got back from being out of town and she fell asleep early with my husband in bed. She wet the bed while sleeping. I know that this is a behavior that could notify us of a health problem, but is one time enough to warrant a visit to the vet? I am worried about her, but I don't want to seem like the "paranoid mother" if it was just the stress of moving around on vacation etc.