mmm I always thought the first "sign" was a
crackling.... in the sense of the noise of breathing...
having witnessed it in a few instances with 2ndary drowning/scuba/divers I've known over the years... and some other perverse interest I've had with the condition over the years eg there was an artist with cystic fibrosis who recorded the last few years of his life for a Channel4 docu long-time ago...he eventually died of p.o
but that aside... I was also trying to understand how p.o would have come on so quickly without the concern of the sufferer....I
guess alcohol/whaddeva could be a factor.
So you've answered some of my questions.ta.
still,,,,anyways,,, awful end, concious or not.
I already boycott the companies mentioned for a variety of reasons & the DM as a rule...but believe the OPs intentions to be both honourable & correct.
gluk.