I had a full run of vaccinations and got COVID about 6 months later. Nothing serious, in bed for a few days, cold and flu tablets kept everything under control, a perfect case of the effectiveness of the vaccines in taking the edge off.
But for about two weeks after “recovery” I was constantly forgetting keys, or my wallet. Drove halfway to the airport for a week away for work one morning and went, “oh shit, where’s my wallet?” and I’d placed it on a bench behind my car when I put my suitcase in the back and didn’t pick it up again. I’m 50 years old, I can count on one hand the number of times I’d forgotten my wallet before that.
That brain fog eased off after that but I wonder sometimes if there are still long term effects that I’m not aware of.