The Daily Star's FREE newsletter is spectacular! Sign up today for the best stories straight to your inboxDoctors have warned Brits that a number of patients who tested positive for Covid-19 first experienced common cold symptoms.They've urged officials to cite a runny nose and other cold signs as official signs of Covid, calling it "vital" to do so.GP's across the country are reporting that patients who have experienced sore throats, runny or blocked nose and headaches are regularly testing positive for the killer virus.As a result, a whopping 140 east London doctors, GPs and health care professionals have signed an open letter, addressed to the UK Government's chief medical officer, Christopher Whitty.The letter strongly suggests that.