It's frightening how quickly it spreads. I tested positive back end of August so I'm guessing it was delta. Double jabbed at that time. It was horrible. Felt quite ill, sweat pouring off me, no sense of smell, absolutely exhausted. Also other symptoms - let's just call them "stomach issues" that I never even knew were a symptom until Dr Google helped me out. It took weeks for the fatigue to go away. So glad I was vaccinated at that time because if that was how ill I felt with a vaccine I would have hated to have got it whilst unvaccinated.
None of the rest of the family tested positive and I've no idea how I caught it. The only places I go to are Tesco and Home Bargains!