Hello! Welcome and thank you for asking on HCM! I understand your concern, and would explain that your symptoms may be related to a autonomic neuropathy. Have you measured your blood pressure lately? A low blood pressure or orthostatic hypotension could explain this clinical scenario. I recommend consulting with your GP for a careful physical examination, a chest x ray and some blood lab tests : - complete blood count ( for chronic anemia or a chronic infection). - HbA1C (to identify the mean blood glucose values of the last 3 months) - fasting glucose - kidney and liver function tests - thyroid hormone levels ( a thyroid dysfunction could also mimic these symptoms) - cortisol plasma levels (to examine the adrenal gland function) - blood electrolytes - inflammation tests (PCR, sedimentation rate). A head up tilt test may be necessary to confirm a possible orthostatic hypotension if suspicions are raised during the physical exam. Meanwhile I would advise you to take plenty of water and juices and a balanced diabetic diet. Hope to have been helpful! Best regards, Dr. Iliri