Hyderabad: For the past fortnight or so, COVID-19 is confounding doctors in Hyderabad by showing up in the form of severe diarrhoea, vomiting, and headache. Until June 15 or so, the symptoms commonly reported by corona positive patients used to be cold, fever and breathlessness. But since June 15, doctors at the Chest Hospital and King Koti hospital in Hyderabad …