Chemical sensitivities

Chemical sensitivities is a disputed chronic condition characterized by symptoms that the affected person attributes to low-level exposures to commonly used chemicals. Symptoms are typically vague and non-specific. They may include fatigue, headache s, nausea, and dizziness.

Symptom recognition

 * The International Consensus Criteria lists sensitivities to food, medications, odors or chemicals as an optional criteria for diagnosis, under the section C. Immune, gastro-intestinal and genitourinary Impairments.
 * 2018, The Centers for Disease Control and Prevention note ME/CFS patients can have "allergies and sensitivities to foods, odors, chemicals, or noise."