Welcome to my nightmare...

I am bad at remembering dreams, I could have just woke up and I forget what the dream was about. Although there was one dream I do remember from when I was smaller. It is a weird dream and it changes settings in a snap its just plain weird. It starts off as a trip to the park with my family and us having a good time. We then went for a walk and as we were walking out of nowhere we were in like a train station with some factory warehouses next to it. For some reason I decided to separate from the group and look around the corner of a building into an alley. There was some cholo looking guys there doing what I remember as illegal stuff and they let some dogs run loose to catch me. I began to run and somehow ended up inside a warehouse full of boxes. I started climbing the boxes to get away from the dogs and there was more cages of dogs along the way up. In the end one dog ended up biting my leg off and one of the main guys shot me and thats when I woke up. What scared me was I couldn't feel my leg, so in a way it made me think if what had happened was just a recap and I didnt have a leg but when I pulled the cover my leg was there it just had fallen asleep. I think I watched too much t.v and movies that day because that dream was just bizarre.