The doc also ran a zillion blood labs and is testing heavy metal toxicity
, chemical sensitivities, 180 foods, molds, etc... while we don't know what the trigger is, we do know the constant vascular headache is a bunch of inflamed hives UNDER the skin. It's a hidden, invisible reaction, which is unusual without presenting with the normal red, itchy hive symptoms. I don't have those. Just the hives beneath my right brow.