Covid - can i have symptoms like a itchy throat and mild headache at first and later develop fever? i started with these symptoms about 5 days before the fever and tested positive on day 7

COVID 19: Rest, hydrate, quarantine & eat healthfully. Consider use of acetaminophen, saline for nasal irrigation, decongestant or cough syrup. Get urgent care for difficulty breathing, blue lips, marked persistent chest pain/ pressure or new onset confusion.

Yes: If you develop breathing difficulty, go to the nearest hospital, immediately. Wish you good health!