Hi - I relate to many of your symptoms and much of your journey. I have also had low thyroid, questionable hormonal imbalances (there seems to be a general lack of knowledge concerning estrogen/progesterone), 18yrs of unexplained infertility, metanephrines high but not high enough for pheochromocytomas, negative tilt table although flushing and heart rate elevated significantly, massive adrenaline surges during sleep, fatigue in day. An allergist placed me on h1&h2 histamine blockers - some symptoms decreased with this initially. I was given an unofficial diagnosis of mast cell activation disorder. I was bruising (hematology rule-out genetic clotting factors), had bone pain (rheumatologist ruled out arthritis) and very dizzy to the point of passing out. Randomly I had genetic work done which brought to my attention that I had genetic variants for Celiac Disease. After my aways sore gut got to the point of not being able to hold any food without it coming up or flushing out immediately I got a gastroenterologist consult. Two gastroenterologists suggest that I have Celiac and secondary lactose intolerance. Cutting out gluten and most dairy has nearly cleared my complaint lists (it has taken me 2-4months to clear out the damage from my gut). I am off of most every medication - yet, an adrenaline rush roared through me again a week ago at night. Not sure if this info helps. I would love to get more answers to this adrenalin problem as well. Let me know how you are doing. Best wishes!