Based on your symptoms of dizziness, nausea, and a headache, it is possible you could have contracted Covid-19. It is important to monitor your symptoms closely and consider getting tested if they persist or worsen. Additionally, following hygiene measures, such as quarantining if you have flu-like symptoms, avoiding contact with others, and practicing good hygiene, is crucial. Remember not to panic, as serious complications from the virus are rare. It is important to take care of yourself and prevent spreading the virus to others. If you feel overwhelmed or highly stressed, seek support and resources for managing anxiety during this challenging time.