Sounds about right. A room mate has had it three times now, and it was a different strain each team. Alpha, Delta, and Omicron in the beginning of November.

I've never had a positive test or any of the classic symptoms, but round about January of last year I had a week of weird leg cramps, and my antibody levels reached Reactive + at my platelet donation, giving me a good indication that I fought off a systematic infection without it touching my respiratory system (where it would be detected by a nasal swab.)