Hi @cathusa, welcome to the Post-COVID Recovery group. I'm sorry to hear that you are experiencing long haul symptoms.

Many people who were infected with COVID haven’t been tested. Some people who didn't experience symptoms at the time of infection and didn't know they had been exposed wouldn't even have thought to get tested. Now that you've been vaccinated (good for protection against reinfection), an antibody test will likely show that you have antibodies. These could be attributed to both the vaccine and to a previous infection.

Such as that is, the fact remains that you have symptoms that require attention. Have you seen your doctor about them? Have you considered a Post COVID Care Clinic?