I get tingling and numbness in my face and lips from damage to my neck/spine sustained in a car accident. The numbness is neurological: whatever is happening in your neck is putting pressure on your nerves. You could have something out of line or even spinal stenosis from natural degeneration.

To know what's happening you need to see a doctor: an x-ray would be a good start and perhaps an MRI.

Good luck and keep us posted.