According to the Centers for Disease Control and Prevention, allergies, colds and coronavirus overlap in some symptoms

A coronavirus testing site at Temple University’s Ambler campus in Montgomery County expanded its criteria to include people dealing with stomach issues or a loss of smell and taste. It comes after doctors revealed new symptoms associated with COVID-19.

https://www.nbcchicago.com/news/local/covid-symptoms-vs-cold-heres-how-to-spot-the-difference/2866198/