I just woke up in a cold sweat

So I’m not sure what happened, but I’ve had a lot of really bad dreams lately, but this one was really bad.<br><br>I dreamt about being on a bus ride. It was a very old bus, and it looked like it was going to fall apart at any moment, and I was sitting in the front of the bus on the driver’s side. It was pretty empty, there was only a couple of other people in the front of the bus and I’m assuming they were passengers. The bus was driving pretty smooth and I was feeling good and pretty relaxed, and the sun was shining outside.<br><br>Out of nowhere I heard a weird noise coming from the rear of the bus. I immediately turned around to look at the back of the bus to see someone trying to get in, and the back doors were wide open. There were three people in the back, one was standing on the seats, one was sitting on the floor, and one was sitting on the seats and holding the standing person. They were all staring right at me and didn’t move for a few seconds. I was confused, because I didn’t know how they got in the bus, but the doors were wide open and they didn’t seem to have a way in.<br><br>I woke up and was terrified.<br><br>Is this normal, or is this something I need to worry about?