hello dear dmom,
perhaps this may help you,
please read at this link -
http://www.bcm.edu/ilru/html/publica...CS.html#causes

here is just abit of the reading
In multiple chemical sensitivity (MCS) a person develops markedly negative reactions to everyday chemical exposures. These include exposures to pesticides in buildings, in gardens, on our food, and on pets; chemical cleaners; petrochemical heating systems; paints; perfumes; industrial emissions; and a myriad of others. We have been conditioned to think of these exposures as being "normal" and inconsequential, but for a growing portion of the population they are not. The condition of MCS develops in two stages induction and triggering. In induction some contact with chemicals causes the person to sensitize to at least one class of chemicals. This contact can be one large chemical exposure such as a chemical spill or a pesticide application, or it can be a low-level, ongoing exposure such as one might experience in a workplace with poor ventilation combined with copy fumes, perfume, and chemical cleaners. After induction the person develops sensitivity to the chemical that was involved in the exposure and to other related chemicals. Thereafter the person will respond with symptoms when exposed to any of this class of chemicals. This is called "triggering." The sensitivities developed are usually more or less permanent, although the kind and intensity of reactions may vary. In what is called the "spreading phenomenon" the sensitivities tend to spread over time to other related chemicals and also to other classes of chemicals. The primary way to avoid reactions once sensitivities have developed is to avoid contact with the triggers. With each new sensitivity this becomes more difficult and the person's access becomes more limited. For this reason one of the major goals in helping people with MCS is to try to limit the spreading by reducing chemical exposures in order to preserve what tolerance the person still has. Unfortunately it is not unusual for people developing MCS to continue to expose themselves to chemicals because at first they do not link their reactions to chemical exposures and/or do not know that repeated exposures can cause a worsening or spreading of their sensitivities.

signs of carbon monoxide poisoning

Carbon Monoxide Poisoning Symptoms
Exposure to carbon monoxide is most commonly accompanied by the following symptoms:

http://www.atlantichyperbaric.com/he...-poisoning.htm

Headache
Dizziness
Nausea
Flu-like symptoms, fatigue
Shortness of breath
Chest pain
Confusion
Hallucinations
Vomiting
Visual changes
Fainting
Seizure
Memory and walking problems ...


peace to your heart,
tena