The past week I've moved to a commercial gym from my garage, which has corresponded to a burning sensation on the right side of my traps on my last couple of deadlift reps. The pain also flairs up while pressing for sets of more than 2. I've realized the cause of this is hyperextending my neck to look in the mirror that's placed so conveniently in front of the deadlift platform, only after finishing my last workout. Today the skin of the back of my neck and traps feel hot and my hands a little numb, should I be worried? Will correcting the neck hyperextension while pulling resolve this?