I just read on another thread that someone smelled amonia sometimes. Well that made me realize that it's been a long time since I smelled automotive exhaust fumes when there really weren't any. Some days were worse than others. I would be here at the shop and it smelled to me as if someone had parked a running car in here. I would go looking and sniffing for the source. Other folks would come in and swear they didn't smell anything.
On really bad days I would go home and smell the same thing there! Sometimes it would go on for three or four days. I smelled it constantly, so strongly that I thought I might be entering early stage Alzheimer's. (I know that phantom smells are one of the symptoms of that.) Then weeks would pass before it would happen again. Winter, summer, it didn't matter.
I had forgotten all about it because I haven't had it happen in so long now. I'm thinking it was another of those celiac symptoms that I didn't know was a symptom.
Anybody else ever have anything like that before going gluten-free?