There does seem to be one aroma that is pervasive but not constant. Turmeric. When I can smell something, that is the only thing. The smell of turmeric seems to be everywhere.
And no. I am not taking or using large amounts of the spice.
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My loss of the sense of smell happened exactly the same way! One day, I just could not smell. At times, I could smell something like gasoline, but that stopped awhile back.
I've not had Covid to my knowledge, but I do have friends that got the first jab, I wonder if I got some sort of spike?
I'll let you know if I find something. The orange trick in my initial post did not work, but I’m not surprised.
When my baby sister had Covid a year ago, that WAS her only symptom. She got up one morning and couldn’t smell her coffee so she got tested. She tested positive and had worked with a guy with covid a few days prior so she wasn’t surprised. She said it still isn’t normal. She never got sick, at all.