Hypoglycemia can happen to people with low cortisol or high cortisol. The adrenal gland is over reacting.
"The adrenals discharge massive amounts of adrenalin and cortisol. This drives blood Sugar back up. Adrenalin can cause all the hypoglycemia symptoms listed above. Cortisone causes fatigue, anxiety, hunger and depression"
Of course you must control stress, that goes without saying.