I dreamed that I had to piss really bad, and couldn't find a bathroom.
I was working at a construction site, and I told my buddy I had to piss really bad. My work buddies dragged out a porta potty. We opened the door and realized somebody forgot to put the toilet in. My buddy pointed out a gas station across the street, but there were several road blocks and indirect routes to get there. I started walking down the road desperate for a piss, and didn't know exactly how to get there with the maze like layout of the town. I tried finding a shortcut, so I jumped over a low concrete barrier, and went through the opening of a parking garage. I had to piss so bad that my body was sore, and my kidney areas were hurting. I gave up trying to hold it in, immediately undid my pants, and started pissing on the side of the wall. The pain went away, and I felt so much relief.
Thankfully I woke up and realized I didn't piss the bed. I should stop drinking fluids before going to sleep.