I have had situations where a very strong smell triggers not only asthma but it gave me a bad headache, dry heaves, and suddenly feeling like I was going to pass out. I went to the ER. They checked me and said everything looked good regarding oxygen levels and blood work. After an IV of Benadryl and something else I did finally feel better. This is so frustrating because it comes out of nowhere, and the medical people just look at me like why are you here? Does anyone else ever experience this reaction to smells? If so, has there been any type of doctor that you have so medical help with?