Oooh, I will definitely look into the oximeter. That with the gas purity test equipment would help my confidence.
My latest attempts I did try hyperventilating, and the effects seemed amass faster. I panicked from SI and pulled the bag off before I could go under. I'll reread the book section again. I also make sure I'm in a sitting up position, and I have my hair tied in a knot so it doesn't interfere with the bag.
Of course, by uncomfortable I mean the sensation of panic from SI. I was imagining it would be as quick as being put under for a tooth removal but it's a lot more nerve wracking when it's just you alone, no medical professionals, and hearing the hiss of gas into the bag. I might try earbuds to calm myself.
I consider myself a sensitive person so I fear as with most things I am being dramatic. The sensations I feel in order of experience time: I become nervous at the hiss of the gas. The air in the bag smells differently than the room I'm in, it smells from how its been in a cannister for awhile, kind of industrial? I don't like the feeling of the bag over my head either. But it's actually nicely cool in there too, which I think is the steady flow of gas flushing the warm CO2 as its designed to. I breathe deeply from the air and I'm nervous with SI. My lungs don't burn or anything, that's really great. And I'm breathing deeply, big gulps of air and I am gradually feeling less solidly awake. But I do start to feel a sort of, like someone is squeezing my head and mind into one tiny point? And it gets harder to think "rationally", and I start thinking -omg this bag is scary- and I end up taking it off soon after. Arrgh!!
At least I can make fun of myself and laugh about it- I think I really just need a way to calm tf down. I could see about getting more percs or trying benzos for that