Lifter Injuries

Anyone know of a good site/compilation of injuries incurred by lifters? I would especially be interested in symptoms, treatments, prevetative tips and when it is time to throw in the towel and seek medical advice.

For example, I developed a pretty big knot at the base of the skull where the cervical vertebrae goes into the skull. It popped out while dead lifting last Saturday. It made me weak, shakey, nausiated, and all the lights were really bright. It happened all over again on Sunday trying to do a chest exercise.

People from other sites think it is a muscle spasm but recommend I go to the doctor, so I am tomorrow. The only reason I am going is because I can’t find any useful information anywhere.