For future reference, here's some info on drowning:
http://www.redearslider.com/major_illne ... uries.html
You are past that stage now, thank goodness.
The biggest risk now is respiratory illness. The symptoms are: lethargy, poor appetite, swollen or irritated eyes, frequent yawning or breathing with the mouth open, swimming loppsided or difficulty submerging, mucus around the nose or mouth. A turtle with RI won't show all these symptoms at once, but if he/she's showing several then it's time to get to the vet's. Treatment is antibiotics and the sooner the treatment starts the better the turtle's chances.
I assume you've fixed the tank so he can't get stuck again. I know how you feel - it happened to my turtle too. He got his head and front feet stuck in the bottom of a little plaster alligator decoration. I heard him clanking around trying to get loose. He was stuck so tight it was really hard to get him out. I thought we were going to pull his little head off. It was horrible but he made it and now, five years later, he's fine.
To all: anyplace a turtle can get stuck, he/she will. They don't have much judgement in this regard. Look over your tank and make it safe for your turtle, please.
By the way, a common place for them to get stuck and drown is the intake pipe on a filter. The intakes need to have guards that can't fall off or be knocked off.
Keep us posted and good luck.
