Hi Jill,
Yes, I have heard of adrenal gland exhaustion and was diagnosed with it three years ago. There is a doctor who wrote a book on his research and created supplemental formulas which have been a big help. You can go to his website at adrenalfatigue.org
It has all kinds of info and the book was very helpful.
My md practises alternative health along with meds and nutrition. After doing blood tests to determine that it was not full blown Addison disease, I am following a regime that has been a long road to recovery from severe adrenal burnout for me. But I am reminded that it didn't take over night to get this way so it won't be an overnight maricle to develop a new lifestyle to recoop what I lost.