he needs to see a doctor asap I highly doubt it had sanything to do with the pot ...
That doesn't sound like anything related to pot. If it is, there is a chance that the hit he took caused a rush and momentary oxygen deprivation, causing him to actually kind of pass out. I have seen this in people who have passed out before. I also recall when I used to smoke pot a lot that I would get rushes like that.
In any event, that is not normal. Keep an eye on him. If it happens more, you should probably get it checked out by a doctor.