Wow I just logged in tonight and just learned this thread is still going on. I think there is possibility to all the above. But yes I was sick. I just don't like acknowledging it or making a big deal out of it. And yeah I was very well aware of the training material and colds, but I really wanted that certification and did not want to wait for Spring to take it again. But I was sick before that second weekend fighting a cold, tinnitus, and vertigo and recovered just enough to finish OW training. It caught up to me badly at that final incident and I was sick for another week. Come to think of it, I probably was just in denial of my condition and blaming myself for not finishing that PPB class.
And yes, wetsuit was uncomfortably tight and so was BCD. I was not fond of the regulator either. I need to lose 10-15 lbs and catch up on weight training, but I'm not overweight. The visibility really worked me up too because it felt so claustrophobic. So yeah I will grant that it may be all the above.
---------- Post added October 25th, 2015 at 08:06 PM ----------
The ratio was not exactly like that. We had several instructors and about six people. But 1-2 instructors were with us underwater while the other two were at the surface to help strugglers like me who came up.