Thanks everyone for their comments and inputs. I've think I've learned this for sure, that diving is probably overall easier at Roatan; shallower, no current, Cozumel dives are usually deeper and in current. I was in Coz. this mid-July. First dive of the week, Palancar area, wall dive, currents was so strong, my mistake of not drift dive in almost a year and I didn't know how to drift dive...suddenly I was about 15ft - 20ft away from the wall ahead of the group, realized that I'd tried to fight the current to get back to the DM and my group. I was fighting the current so hard to get back to the wall then suddenly one of my fin came loose and fell off my boot. I was still kicking with one fin, and then I'd noticed that I'm descending and drifted further away from the wall so fast. I still don't know was it because of kicking with only one fin that couldn't create any force to keep me at current depth or was it a down current that pull me down. The current that day was so strong. I was so scared, it was just deep dark blue on one side and a manificient beautiful wall on the other so I freaked out inflate my BCD all the way....and shoot straight up. I went up so fast, it was like 8 or 10 secs and I'm on the surface I didn't want to die down there in the deep blue. DM found out that I was in deep sh**t he tried to grab my leg and pull me down but it's was too late. When I was up on the boat I'd still had 1700 psi left, so I guess I didn't dive or stayed down there long enough to have DCS when I shot up.
Later he told me I was down at about 80 ft or so when I shot up to the surface. And I asked him is it possible that I can get a hit since I ascended to fast, he said that he thought that I didn't have enough Nitogen in me that can cause DCS. Then he asked if I want to continue the dive since you've still have 1700 left, are you kidding me!!!....No way, I'm sitting on the boat, I was so shakened up. While sitting on the boat I kept imagined thing like is my hand numbs, are my feet numb....Any way we did our usual 1st tank SI then I dove with the group on the 2nd tank that day and 7 days after that with no problem.
What about my lungs did it expand too fast and can cause damage when I ascend so quickly from about 80 ft deep like that. I thought I was going die, but I'd really want to see my son and wife and die but not in the deep blue water. Sorry I'm a novice diver with only about 40 dives, think about it again I should have gone to Roatan first to learn how to dive and get really good at it. Cozumel currents sometimes is just strong and wild...and sometimes there is none....