Hi Sue,  CAH is completely genetic.  It is not caused by stress during pregnancy.  I have a 2 1/2 year old son with salt loosing CAH.  Then I have an 8 year old son (non CAH) who is BiPolar.  I would be happy to talk to you about that.  I would like to know what meds he has been put on.  It's also nice to find others that are going through the same kind of stuff you are going through.  Hope to hear from you.