Sharon starts her story with–
I’m often asked to explain what MCS is, how it affects me, and what it means about my role as a service dog partner. This page is dedicated to answering those questions. Having MCS is like living on another planet, so it’s not surprising this “alien” life imposed on MCSers is so hard for non-chemically injured people to understand.
MCS stands for multiple chemical sensitivity. Some people also refer to it as environmental illness or TILT, toxicant-induced loss of tolerance.
Having MCS means that tiny exposures to chemicals found in every day products that most people don’t think twice about make me sick.
She even had a service dog named Gadget. She breaks it down from here: http://aftergadget.wordpress.com/about/about-sharons-disabilities/how-mcs-affects-sharon/