Addison's disease or adrenal insufficiency is due to underactive adrenal glands associated with lack of hormones. Adrenal insufficiency may be acute or chronic . Symptoms of chronic adrenal insufficiency include low blood pressure, fatigue, weight loss, anorexia, nausea, vomiting, abdominal pain, salt craving and low blood sugar. Skin and mucous membranes may show increased pigmentation. The loss of secondary sex characteristics is seen only in women with the disease. Acute adrenal insufficiency is a medical emergency and must be identified and promptly treated. The hallmarks of acute adrenal insufficiency are circulatory collapse with abdominal pain and low blood sugar.
Catecholamines are produced in chromaffin cells in the medulla of the adrenal gland, from tyrosine , a non-essential amino acid derived from food or produced from phenylalanine in the liver. The enzyme tyrosine hydroxylase converts tyrosine to L-DOPA in the first step of catecholamine synthesis. L-DOPA is then converted to dopamine before it can be turned into noradrenaline. In the cytosol , noradrenaline is converted to epinephrine by the enzyme phenylethanolamine N-methyltransferase (PNMT) and stored in granules. Glucocorticoids produced in the adrenal cortex stimulate the synthesis of catecholamines by increasing the levels of tyrosine hydroxylase and PNMT.  
Sufferers usually jump from one doctor to another because they are not improving. The reasons are simple. The body is not getting what it needs at the foundation level to effectively recoup, rebuild and heal itself. More is not necessarily better, and often can weaken the body. Stimulating the body without nurturing the adrenals leads to a gradual decompensation of the body that ultimately can be debilitating. Many sufferers have seen their careers destroyed, social life vanished, becoming homebound, and in severe cases, even bedridden. This doesn’t have to be you. It’s YOUR body! Do not take YOUR fatigue lightly. Short-term patches and ignorant nutritional and medical advice can ruin you. The body has amazing recovery ability if only given the right tools and chance, and that is where the recovery effort should be focused on.