Was it a gradual this or did you just suddenly lose it?
I'm slightly paranoid, we're a shielding family with a very high risk child.
Today I've noticed my sense of smell seems to be off, DH cooked bacon and I didn't smell it until it was on the plate in front of me and now I can't smell the bread cooking unless I open the lid of the bread maker.
If this was a sign for you, how long after did other symptoms appear?