Wiznutaggie
Contributor
Somewhere in my last dozen or so dives I've experienced the feeling of overexertion three times. Each time it has happened while kicking harder and becomes a very scary feeling that while I know can be overcome by stopping and focusing on breathing is becoming a mental block for wanting to dive. I had not experienced this at all in my previous 75 or so dives I've done. It feels like the threshold to the feeling of overexertion is getting lower. I have been focusing a lot on lowering my sac rate and I wonder if this is leading to less clearing of CO2 and I'm putting myself on the edge of overexertion because of it or if something else is going on? Anybody have any ideas on the matter?