So last night I went with my roomate to see one of his favorite hardcore bands. Well they were really good so I got into it and was moshing and slam dancing, and of course being the good metal head I am, I did more then enough head banging. Anyways today my neck hurts like hell. Same thing after the Opeth concert, the top half of my spinal chord felt shredded. Anyways, I'm wondering if I'm doing something wrong, should I be in so much (and its really not that bad, I mean its far from unbearable). Pherhaps its because I slam very hard and fast, in a up/down motion. Do any of you have sugestions on how to avoid this, or is this just consider this par for the course with head banging?