I've read that heat intolerance can be caused by adrenal fatigue. I used to love the heat, but now I am only comfortable in a narrow temperature range. This started for me when I contracted RSD (Reflex Sympathetic Dystrophy/Complex Regional Pain Syndrome; thankfully it is in remission right now) and has only gotten worse with time. I strongly suspect that chronic Lyme burns out the adrenal glands in a very subtle/slow way so that we hardly notice until the adrenals are almost all the way shut down. I'm starting a hormone treatment next week (for balancing female hormones) that may also help some with the adrenals...so we'll see if that helps heat intolerance and any of my other symptoms too.
Chronic Lyme Disease, Bartonella (clinical dx only), Gluten & Sulfite Sensitivity, Many Food/Inhalant/Medication/Chemical Allergies & Intolerances, Asthma, Gut issues (dysmotility, non-specific inflammation), UCTD ("Secondary Lupus-Like Syndrome"), Osteoporosis, etc.; G-Tube; TPN via PICC (trying again to wean off the TPN).
Meds: IV Cipro, Heparin (to flush PICC line), Singulair, Claritin, Domperidone, Colloidal Silver, probiotics, digestive enzymes, Milk Thistle, Magnesium, homeopathy.