The June 2014 edition of the Canadian Family Physician journal contains a couple of excellent articles by Dr Stephen J. Genuis. Here’s the abstract and link to one of them:
Approach to patients with unexplained multimorbidity with sensitivities
Abstract:
Objective To explore the underlying causation of unexplained multimorbidity with sensitivities and to discuss the management of patients who present with this perplexing condition.
Sources of information Medical and scientific literature was used from MEDLINE (PubMed), several books, toxicology and allergy journals, conference proceedings, government publications, and environmental health periodicals.
Main message Multimorbidity with sensitivities has become an increasingly common and confusing primary care dilemma. Escalating numbers of debilitated individuals are now presenting to family physicians and specialists with multisystem health complaints, including sensitivities and fatigue, with no obvious causation, a paucity of laboratory findings, and a lack of straightforward solutions. In the recent scientific literature, there is discussion of sensitivity-related illness, an immune-mediated disorder that frequently manifests with multisystem symptoms, commonly including sensitivities and fatigue.
Seriously "Sensitive" to Pollution 