I was running full speed one way, and another person was doing the same my way. I didn’t see him and we collided, hitting my entire left side of my face off his face. I went down real quick and fealt horrible with a major headache the rest of the day. I took an advil, but my head is still hurting around where my temple is. I was checked by somebody that witnessed it for a concussion. They said it was not a concussion......somehow. So I was wondering what it could be? Probably soreness. but idk.