Dear Chris,

Apparently, with CAH, one can sometimes become symptomatic or assymptomatic at different times in life.  I do not think that that is the same thing as "growing out" of the condition, though.  You're either affected, a carrier, or unaffected with the condition---period.  Whether or not you have symptoms as a result of your status, I think, is a whole different issue. 

Sorry, but the answers and run-around that you've been given for the last 20 years sound patently ridiculous.  There is no reason to be kept in the dark any further---it is simple enough to confirm your status by running the appropriate test.  An ACTH stimulation test, to confirm diagnosis, is the industry standard.  If your current consultant did not perform that test, I would suggest finding someone else who will.

Good luck.