false positives or negatives are an issue of antigen tests, not PCR, those are pretty accurate.
@Jools I hope you feel better soon, many people are affected in the neurological system, instead or on top of the respiratory, and dizziness, headache, loss of smell and taste, brain fog are all recognized symptoms of covid.
BTW, my vestibular therapist told me they are opening a covid clinic at the rehab center for recovered covid patients with neurological sequels.
Take good care of yourself and don’t minimize any symptom, check your oxygen three times a day with an oximeter. My parents got covid two months ago and have not recovered the smell.