I think you did exactly what you should have done. You recognized that there was a problem and that it would be wise to seek medical attention. The paper I was referring (still searching) to dealt with is it the proper course of treatment to allow mild DCS to 1. resolve itself or 2. treat with O2 only or 3. chamber treatment. I posted the article only to reassure you that what you did was the correct thing to do and to remind you that if hit you could be more susceptible in the future.