1/10: 9/10
Numbness: No
Movable: Yes, but hurts
Back/head injury: No, just neck
Bold print: I just said in OP it was because of a football injury, I was pushed down and my shoulder slammed into my neck
Are you having any headaches or weakness/pain in any areas other than your neck (jaw, arm, ex)
But yeah I'm going to suggest you see a doctor honestly, especially if it doesn't seem to be getting better. It could be nothing, it could be serious. No way to be sure without imaging tests at a hospital. It could be a muscle or it could be a slight fracture/herniated disk. Only imaging can tell.