Hello Doctor, Periodically over the course of the past month I have had sudden feelings of having a perfume taste in my mouth. It is the same sensation, feeling of when you spray air freshener or perfume and you feel as if you are choking on it. However, I have not sprayed anything, am not wearing perfume, do not smell any strong odors. This comes on all of a sudden and lasts about a minute, followed by chills and later sweat, this all happens within a couple of minutes. I am taking Thyronorm 75 mcg for the past 7 years. Besides that I am not on any new medications, being treated for any chronic disease. Can you give me some insight into this?