I recall being on hydrocortinsone, when I was a younger child, however, i on not remeber the dosage.  In my teen years I was changed to prednisone, which daily I took 10 mg along with .15 mg of fludocortisone.  Recently within the past 2 months I have been switched to .75 of dex, and no fludocortisone at all.  My most recent test results showed an oversuppresion of 17 ohp and ando, so my doc lowered me to .5 mg of dex.  Amzingly with out any fludocortisone, I have been able to maintain correct levels of sodium and potassium, though I have been diagnosed with SWCAH.  I am about, 5 feet 7 inches,  and right now way about 185 lbs,  though I have been done to 145 as little as 2 years ago.  College, and crunched time makes fast food, and easily cooked food too attractive, and I put the weight back on.  My mother is around 5’4" and my father is about 5’11".  I have a sibling who is 25 and around  my height, though much slimmer.  I hope this helps with the questions you have had.  My mom thinks because I have normal sodiam and postassium levels that I belong in a medical journal since I have no medicine to monitor and maintain those metabolic levels.