I was on vacation 3 days ago and at the pool also, and I thought for some reason it would be a good idea to dive into a 4 foot pool, and when I did I hit my head and saw stars. My legs felt really unbalanced after it. But not only that, but 12 hours later I was at the pool again when I felt really dizzy and ended up passing out and hitting face first into a brick wall which ended up chipping my tooth and leaving me with a bleeding gum. But luckily I also caught myself before I slid down the wall