It is hard for me to think of a single disease or disorder that could account for all of the abnormalities and symptoms that you describe. There are probably several different health-related issues that your doctors will have to sort out, I'm afraid.
Unfortunately, multiple different disorders can lower the white blood cell count (WBC). Some people have chronically low WBCs for unknown reasons. In other patients, certain medications can lower the WBC. Chronic and severe vitamin deficiency (and which may be more common in people who drink a lot of alcohol) can also reduce the bone marrow's ability to manufacture both red and white blood cells. Some chronic viral infections (including HIV) can also lower the WBC, and some disorders of the bone marrow can also decrease the WBC. It is, unfortunately, impossible for me to say whether or not any of these possibilities apply to you, specifically.
I strongly suggest that you get help in quitting both smoking and drinking, and that that you find other, and more healthy, ways to manage your stress and chronic abdominal pain and headaches.
Sincerely/ Robert A. Wascher, MD, FACS
http://doctorwascher.com
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