"TC" wrote in message
.. .
Is this something that eventually goes away after repeated boating?
What can be done about it?

I have to take it in small doses and work up to heavy seas...

This is something I have to get used to at the start of every
boating season. By November, I don't even think about it
but the process will begin all over again in May. My ears/stomach
somehow *forget* how to deal with it over the winter.

db