According this list, Covid-19 and Flu symptoms are very similar. Only different is BREATHLESSNESS. When I first started to wear mask, I felt short breath all the time. But when I was not wearing mask, I felt fine. I guess I was only not used to breathe with mask on. I wear mask everyday in the office, store, bank, …etc. This is one of my new normal in 2020. Stay safe and healthy 🙂