[navyhmc]

I can see this went very bad, glad to know that you and the other diver are okay-Sounds like he had more going on than a bad burp. I am thinking that he had a cardiac sphincter (the muscles that keep us from regurg after eating) spasm that trapped the air. I will speculate that he did lose some of the air in his gut as from 100', he could easily have ruptured his stomach and had all sorts of problems.

When you say that they had to "Stab his stomach with a tube" and that he had air all over his chect cavity, sounds like he also had a pnuemothorax that was going tension. Was the tube in his chest? Normally, they will insert a nasogastric tube to relieve stomach pressure.