Running from an unseen Fear through Parking lots and supermarkets

"I was running through a parking lot at night, but I don't remember what I was running from. I could hear someone behind me, close enough that I kept expecting a hand to grab my jacket. I didn't look back because I was sure seeing it would make things worse. The parking lot turned into a supermarket. I was still running between the aisles, knocking things over, and people kept complaining that I was blocking the way. I tried to ask one of them for help, but no sound came out. I saw an exit and pushed through the doors, but I ended up in my old bedroom. My little brother was sitting on the floor, playing with a toy car. I told him we had to leave, and he said we couldn't because the person chasing me was already in the closet. I shut the closet door and held it closed. Something pushed against it from the other side, not very hard, almost like it was waiting. Then I noticed there was another door behind me, one I'd never seen before. I opened it and found myself back in the parking lot. The footsteps started again immediately. This time I turned around, but there was nobody there. I woke up still running, with my heart pounding for no obvious reason."