Table 4.

Non-exclusionary overlapping conditions.

Autoimmune Sicca syndrome Cardiovascular Autonomic dysfunction Mitral valve prolapse Orthostatic intolerance Neurally mediated hypotension Postural tachycardia syndrome (POTS) Delayed orthostatic hypotension or tachycardia Endocrine/metabolic Insulin resistance Hypoglycemia Metabolic syndrome Polycystic ovary syndrome Severe obesity

Gastrointestinal Eosinophilic esophagitis Gastroesophageal reflux GI motility disturbances IgE-mediated food allergy, non-IgE mediated milk protein or other food protein hypersensitivity Irritable bowel syndrome Lactose/fructose intolerance Gynecological Dysmenorrhea Endometriosis Pelvic congestion syndrome/pelvic venous incompetence Premenstrual syndrome/dysphoric disorder Vulvodynia Hematological Iron deficiency Mast cell activation disorder

Neurological Chiari 1 malformation Migraines Thoracic outlet syndrome Hypersensitivity to light, touch, sound, odors, and medicines Respiratory Allergic rhinitis Asthma Chronic sinusitis Rheumatological Joint hypermobility syndrome Juvenile fibromyalgia Myofascial pain syndrome Ehlers-Danlos syndrome Temporomandibular joint disease Sleep disorders Periodic limb movement disorder Restless leg syndrome Urinary Interstitial cystitis