Not at all, I just went in like normal. I don't use CPAP at home because I've been too lazy to get it, but I know I have sleep apnea since I snore all night.
I think because you are weightless in the water my airways open up so I'm not affected in the tank.
This is an interesting thought experiment for my uneducated brain. How much of your body is actually "weightless" in this situation? Or is it just a trick of the mind? Surely gravity would still affect parts of your body? What difference does fully submerged vs. floating have on this effect?
It's not the same sensation as weightless. It's a lack of pressure points anywhere on the body. It's like dropping backwards into a deep snow bank. Actual weightlessness is disturbing, if you're not used to it. This is just comfortable.
I think because you are weightless in the water my airways open up so I'm not affected in the tank.