I tore the connective tissue to my traps in the back of my head.
It hurts like helllllll.
Neck brace for close to 8 weeks, stuck home playing Metroid...

Anything with your traps/neck area isnt anything to mess with..go to a chiro or PT.

Stay away from shrugs and watch tweaking your neck during any HEAVY lifts.

Muscle relaxors help but hinder my workouts so I suffer, anlgesics take the edge off but thats about it.
Stay away from opiate based pain killers.