Am definitely going to make him a dr appt for when we are home, as I also am concerned it may be something more serious! As far as him getting out of the truck, we have 2 pugs who have to be walked...we usually stop every 2-3 hours to walk them. In the meantime, I wonder if the truck stops carry water pills? The frequent urinating isn't a problem for him...as long as there's not a lot of traffic around, he is able to go in a bottle, without having to stop! Wish it were that eady for us girls!!!!