Scary after dive experience?

[LKunze]

Here's a couple of pieces of info from the DAN website I thought I'd add to this post.
Unfortunately, however, even when we follow all the rules for avoiding decompression illness, there are no guarantees that it won't occur. And what is even more perplexing is when you know you haven't violated any of the established rules - and yet find that you're bent. When signs and symptoms of DCI occur after a dive, series of dives or days of diving, and the diver has not violated any safety guidelines, it is sometimes referred to as "unexpected DCI."
Although no one can say for sure, it is more likely that this trapped air - or subcutaneous emphysema - originated from pulmonary barotrauma. Sometimes the lungs are over-pressurized, for instance, when we have difficulty clearing. This can happen when we attempt to put air into the sinuses and middle ear with more force than is necessary. This can actually increase the amount of pressure in the air spaces of the lung, which then allows air to escape through lung tissue, where it can travel up to the shoulder, neck or even the face.

Subcutaneous emphysema does not require recompression treatment. However, it is a good idea to be evaluated by your physician to determine the underlying cause of the air bubbles.