Loss of appetite and indigestion Intermittent diarrhoea Fullness after eating little Abdominal bloating Sluggish pupil reaction Exercise intolerance Gait abnormality Weakness Excessive urinating at night Decreased libido Numbness or tingling in feet, legs, hands, arms or other body parts
Other Medical conditions like Guillain-Barre syndrome, myasthenia gravis, rheumatoid arthritis, Sjogren’s syndrome, systemic lupus erythematosus, etc. Diabetes and pre-diabetes Nerve injury Inherited disorders Familial dysautonomia (Riley-Day syndrome) Idiopathic orthostatic hypotension (progressive autonomic failure) Parkinson’s syndrome with autonomic failure Carcinomatous autonomic neuropathy Prolong inactivity or illness Nutritional deficiencies including vitamins B1, B3, B6, and B12 Paraneoplastic Syndromes Physical trauma, surgery, pregnancy, or viral illness Toxicity (i.e., alcoholism, chemotherapy drugs, and heavy metal poisoning) Treatment with medicines, including chemotherapy and anticholinergic drugs
Neurologist
