Quote: | Originally Posted by digital_steve I have had CO2 issues that i put down to being narked as well.
My heart will start to thump, not quicker but just feels like a really hard beat and i felt that i could never get enough air through the reg... even though i was slowly breathing. Horrible feeling and i thought i'd swim a shallower profile to try and compensate against narcosis, it didn't really help.
This was all on 21%. I don't seem to have the same issues on richer mixes... dunno if that's placebo or not | No, it's nitrox. 
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Citius, Altius, Fortius? No: Lower, Slower, Fatter. |