Great job BuiltLikeaBulldog! The term "cascade" sure has a different connotation since i started diving. It seems you did not actually panic but did certainly had anxiety down under, and then when you were "safe" all that adrenaline had to exit somehow. I'm new but have learned that a dive is classified "easy" after the dive, not before. Learned this the hard way. I realized if I classified a dive as easy when dry I tend to not be as attentive because in my head I have the "what could go wrong" scenario in the wrong context. What I will take from your example is the calm quiet think it out approach down below, and BobDBF's advice.
I'm sure I would be huffing and puffing from nerves. Thanks and hope your shoulder is better soonNext time you have the experience to decide to quit earlier, drop the belt, and relax on the surface a while before deciding your next move.