Recently I drove on a icy curvy road late at night on a 2 lane road
where both lanes are going the same way.  The car traveling next to me
caught a big wind burst which forced the car clearly into my lane.  It
scared the crap out of me.  I noticed that my ears felt like they were
wet after that incident and remember my  girlfriend saying that
sometimes when she gets spooked she can "Feel her ear wax melt".
My question is what is that wet feeling in your ears when you are
spooked?  I really don't feel that ear wax melting in your ears as a
result of being spooked is medically reasonable. That doesn't make
sense to me.  I would like to put this question to rest as my
girlfriend and I debate about it regularly. Thank you for your time.

sweat?

could be sweat I guess?

A stress response involves many physiological changes in the body. One
of the reactions when your body kicks in to "fight or flight" mode is
that you sweat...which would cause your ears to feel wet. Another is
that is directs blood to the major muscle groups and decreased flow to
lower priority systems...like the digestive, reproductive, speech, and
auditory systems. This lack of blood flow to the ears would also
contribute to a cold or clammy feeling in them. You can get more and
better decriptions of the process if you Google STRESS RESPONSE.