(kind of gross question) whats with the after-dive snotball phenomenon?

[chrisw]

HI all,

So, what is with the after-dive snotball
phenomenon
?
Each time I dive (pool, lake or ocean),
all 30 of them including all CW training,
I get treated to a big snotball just after
I surface. In the pool and lake , it slithers
down the back of my throat but, in the
ocean, it oozes out of my nose becoming
a lovely visual treat for the folks on the dive
boat.

Does anyone else get this?
Can anyone explain the physics and physiology
involved with this phenomenon?

Can you tell I am REALLY bored and need to
go diving again?


-chrisw

PS i promise to bring a hankie next time i dive.