This might be a redundant thread, but was just curious if anyone could explain to me Multiple Chemical Sensitivity. The information I found seems to indicate it is even less established then ME/CFS. My symptoms are sensitive to temperature changes (dizzy, lightheaded, feel liking fainting in the heat, and basically don't function in the cold), senstive to light (but not all the time) and it gets really bad sometimes that I can barely function with the brightness/glare, and then more recently I am sometimes bothered by certain smells (irritants). This morning walking on the sidewalk I felt like gagging and passing out from the smell of car exahust. Black and Milds/Cigar smoke also is very bad for me, and some perfumes (poor air circulation in the locker room). Separately, these symptoms seem very mild, but I am wondering if this might be chemical senstivity, or I am just more observant of my bodily reactions. I have also been recently diagnosed with asthma (still questioning this), so my airway may be more senstive? Any thoughts?