Ok so I had a rather unnerving experience acouple of weeks ago during a dive and for the life of me I cannot figure out what the cause of it was.
So I was diving a wreck (no penetration) at 40m, the plan was to descend down a mooring line on to the wreck spend a few minutes having a look then head up a slope to a shallow reef and finish off the dive there. I got a little distracted by a lion fish trying to eat a baby octo (who wouldn't?) and ended up going into deco. My computor beeped at me so I started my ascent in a calm and controlled manner and followed my comp instructions. This is when things got a bit screwy. At about 27m I had a strong feeling that I was going to lose consciousness. I managed to fight this off, signal to my buddy that I had a problem and pointed to my head. This continued for about 1/1.30 minutes. I maintained a safe ascent rate and made sure my buddy was right next to me. At about 20m I felt ok again just very confused.
This is not a new dive to me, I have done it several times with exactly the same profile. I wasn't in sick, tired, hungover or unfit. There is just one variable that I can't seem to figure out. Only thing different is that I went a little deeper than planned but still doesnt explain what happened.
If anyone could shed some light on the cause of the light headness then please let me know.
Thanks
So I was diving a wreck (no penetration) at 40m, the plan was to descend down a mooring line on to the wreck spend a few minutes having a look then head up a slope to a shallow reef and finish off the dive there. I got a little distracted by a lion fish trying to eat a baby octo (who wouldn't?) and ended up going into deco. My computor beeped at me so I started my ascent in a calm and controlled manner and followed my comp instructions. This is when things got a bit screwy. At about 27m I had a strong feeling that I was going to lose consciousness. I managed to fight this off, signal to my buddy that I had a problem and pointed to my head. This continued for about 1/1.30 minutes. I maintained a safe ascent rate and made sure my buddy was right next to me. At about 20m I felt ok again just very confused.
This is not a new dive to me, I have done it several times with exactly the same profile. I wasn't in sick, tired, hungover or unfit. There is just one variable that I can't seem to figure out. Only thing different is that I went a little deeper than planned but still doesnt explain what happened.
If anyone could shed some light on the cause of the light headness then please let me know.
Thanks