Stop in for a cup of coffee

I never got any Ill effects from all three shots, other than a slightly sore arm. Now I'm beginning to wonder if I am non symptomatic. I was with my Church bud Steve last Tuesday. Same day I went for 2 covid tests. Two days ago he felt Ill and tested positive yesterday. You all think there's chance that I have antibodies ? Possibly I got it before my first Covid Vaccination? Both tests last Tuesday were negative. and I feel fine. But must go test again today since the flight has changed. Any opinions here? I dont research much...
You might have. My daughter is an RN in surgery at our local medical center. More than one doctor has told her once you have Covid your golden with a natural immunity.