"You know that feeling you get ................ is something there? Just wondering if/when/how often this happens when you're in the water. Especially for you ocean divers... I think I would find myself constantly looking above, below, behind, left, right and ahead for sharks, etc."
Nope. If you are in the ocean there are always sharks around. There's no reason to wonder, I know they are there. I don't usually know where or how close, but I know they are close enough to sense me. If I'm lucky they'll come close enough for me to see them.
Chris makes an excellent point. If you feel something is wrong with the dive - abort the dive as quickly as you safely can. There may be a logical reason or there might be just a feeling - either way you should abort the dive.
Nope. If you are in the ocean there are always sharks around. There's no reason to wonder, I know they are there. I don't usually know where or how close, but I know they are close enough to sense me. If I'm lucky they'll come close enough for me to see them.
Chris makes an excellent point. If you feel something is wrong with the dive - abort the dive as quickly as you safely can. There may be a logical reason or there might be just a feeling - either way you should abort the dive.