Neck pain and stuffiness when i yarn?

Anti-inflammatory: Sharp neck pain usually comes from a degenerative joint or disc in the neck. Sometimes it's from a muscle strain or sprain. Early treatment options include a short course of nsaids (advil, aleve), gentle massage, moist heat, and focusing on posture. If pain lasts greater than 2 weeks see your physician.

Likely muscular: This appears to be muscular in origin - need exam to check for pain generators which could include vascular dissection or tmj.