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Greg - 9/08/2010 8:37 AM 
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I’m yet to experience it but I’m interested to find out what you think the reason was in your case. I was kind of under impression that the more deep dives you log, statistically you’re gonna get narked sooner or later even if you always dive by the book. If there is a silver bullet out there, how to never get narked with multiple deep dives over the years, I’d like to know what it is.
Funny, I goofed up on my AOW Deep dive too. I’ve been cold water diving in full 7mm and it always felt warm enough, sometimes too warm. Well, for my deep dive I took off the hood and gloves, wanted to try what it’s like. Duh! Got the worst ice-cream headache of my life.
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Well slick,I too am interested to know what was causing the buzzz??? Gas not mixed correctly?? I am getting ready for my advanced open water diving class real soon. From what you explained I think I have felt that feeling this summer in an open water dive. We were at 30’ and the water was ugly to say the least at one point my dive buddy kicked up a whole bunch of junk off of the bottom,cutting my viso down to were I could not see past my mask! I felt like I was sitting too close to a fuzzy television. Then I started feeling very dizzy. I couldn’t tell if I was upside down,backward or what!!! It was kinda funny after the fact but I’m not exactly looking forward to that happening again lol!!!
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well your deadlined past, so i am going to guess anyway. AIR/depth? let us know
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SLICK - 9/28/2010 11:37 PM
Sorry All! Had to go to Vegas for a week...now, the answer...
The Nitrogen Narcosis was caused by weight gain...sort of. I gained about 30 pounds, which made my wet suit too tight, causing constriction of my chest. Although slight, the constriction was causing me to take shorter breaths, and I was not able to expell about 30% of my carbon dioxide while exhaling. The carbon dioxide mixed with the nitrogen accounted for almost 90% of each breath, therefor, only 10% was oxygen.
I know, that doesn’t sound right or good, but when recreated in a hypobaric chamber, that’s what we discovered. By removing the wetsuit, the oxygen intake rose 40%, to almost 70%, at 4 ATA. I now dive with a larger wetsuit, and have not had Nitrogen Narcosis since. Thanks for all of your inquiries.
Rick
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wow! And i have been debating buying a bigger wetsuit instean of squeezing into mine that "shrunk." good info and thank you for the info
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