I cracked my neck and now i can't move it, should i go see my doctor or is there something i can do?

Torticollis: Definitely go see your doctor to rule out anything serious. If your doctor says it's safe, you can try a heating pad, hot shower, tylenol (acetaminophen) ibuprofen, muscle relaxers, a cervical collar, physiotherapy, acupuncture, doctor of osteopathy (D.O.)or a gentle, reliable, safe chiropracter though the evidence is limited for this. It can take more than a week sometimes to get back to normal.