In February of 2020, I caught something from my wife who caught it at a class for Chinese teachers in Washington State.
At the time, you could not get a COVID test unless you had just arrived from China.
I've gone over the symptoms before, but I'll give the nutshell version: I was in bed for 5 weeks with many different symptoms.
When the antibody test was available I took it, and it came back negative, but that was months after I had been sick.
I have not known for sure whether or not I had COVID.
Then I stumbled across this article:
www.theguardian.com
Parosmia - alteration of smell so that something that normally smells good, smells really bad.
Parosmia was rare before COVID. But it was a common symptom of COVID, you would lose your sense of smell, then when it came back some things smell wrong. They have identified one particular chemical that most often triggered parosmia in people with COVID - 2-furanmethanethiol - the primary smell of coffee.
I lost my taste and smell, and when it came back, coffee tasted TERRIBLE.
Ergo, I had COVID.
At the time, you could not get a COVID test unless you had just arrived from China.
I've gone over the symptoms before, but I'll give the nutshell version: I was in bed for 5 weeks with many different symptoms.
When the antibody test was available I took it, and it came back negative, but that was months after I had been sick.
I have not known for sure whether or not I had COVID.
Then I stumbled across this article:

Scientists identify ‘trigger molecule’ for Covid-related changes to smell
Molecule found in coffee typically described by people with parosmia as disgusting or repulsive
Parosmia - alteration of smell so that something that normally smells good, smells really bad.
Parosmia was rare before COVID. But it was a common symptom of COVID, you would lose your sense of smell, then when it came back some things smell wrong. They have identified one particular chemical that most often triggered parosmia in people with COVID - 2-furanmethanethiol - the primary smell of coffee.
I lost my taste and smell, and when it came back, coffee tasted TERRIBLE.
Ergo, I had COVID.