Hi guys, I also have this soft, liquid like bump on my head. I think I got this bump when I flipped a quad over, and I fell head first. The bump didn't show that same day though, it was the next day that I felt it. It's been three days after the wreck, and I have to know if this is going to get worse or not, how long will it last, and what do I have to look out for. Please, I'm just 14, and I still gotta a lot of life to live. Is this something vital, or not?