I had this exact experience on OC when I was doing my sidemount training years ago...
It was the final dive in Mexico, after about 11 days of having my ass kicked by the awesome folks at Under the Jungle.
It was the last dive before I was set to leave. We'd already done a dive on 1/6ths and this was the second dive on the same tanks... The cenote's name always escapes me, but we were about an hour in as it was very shallow.
Right as I was hitting turn pressure, I had this sudden sense of impending doom. I was about 50 psi from turn pressure, so I cruised along for a bit and signaled the end of dive.
The whole way out, I was troubleshooting like this:
Is it bad gas? Couldn't be as I dove this on the previous dive and it was fine. Do I have some equipment problem? I did a head to toe check (many times) - no problems. Am I having some kind of cardiac event? Nope, don't think so. Am I injured/is something else wrong? Nope. Is there anything I can identify that's out of the ordinary? No.
I couldn't find anything and I was never so glad to see the end of line as I was that day. In retrospect, I think I was just tired and my unconscious was telling me it was time to rest. But like @Doc Harry said, do not **** around with these feelings. When you get them you GTFO and live to dive another day.
Even if it's "nothing" you've got a feeling that is going to put you in a bad place, so it's time to thumb the dive. . .
It was the final dive in Mexico, after about 11 days of having my ass kicked by the awesome folks at Under the Jungle.
It was the last dive before I was set to leave. We'd already done a dive on 1/6ths and this was the second dive on the same tanks... The cenote's name always escapes me, but we were about an hour in as it was very shallow.
Right as I was hitting turn pressure, I had this sudden sense of impending doom. I was about 50 psi from turn pressure, so I cruised along for a bit and signaled the end of dive.
The whole way out, I was troubleshooting like this:
Is it bad gas? Couldn't be as I dove this on the previous dive and it was fine. Do I have some equipment problem? I did a head to toe check (many times) - no problems. Am I having some kind of cardiac event? Nope, don't think so. Am I injured/is something else wrong? Nope. Is there anything I can identify that's out of the ordinary? No.
I couldn't find anything and I was never so glad to see the end of line as I was that day. In retrospect, I think I was just tired and my unconscious was telling me it was time to rest. But like @Doc Harry said, do not **** around with these feelings. When you get them you GTFO and live to dive another day.
Even if it's "nothing" you've got a feeling that is going to put you in a bad place, so it's time to thumb the dive. . .
