Sudden fatigue, drop in platelets also Covid symptom Published: Share Tweet Recipient's Name Send Sudden fatigue with a sudden drop in platelets in blood is also a symptom of Covid-19 in initial stages, while fever and extreme breathlessness develops later. Lucknow: According to medical experts, if ignored, these initial symptoms could prove to be fatal. Prof Santosh Kumar, respiratory medicine department KGMU, said, "In every viral infection, platelet count drops. Therefore, one should not ignore fatigue and exhaustion and get themselves tested for Covid-19." Although, general Influenza-like symptoms are common in Covid-19 but new symptoms are diarrhoea, red eyes, rashes and fatigue.Â