oronavirus symptoms three-months after catching the killer disease.Callum O’Dwyer, from Aberdeen, still has extreme fatigue and muscle weakness 12 weeks after picking up the bug.The 28-year-old also described having extreme “brain fog” and has been forced to move in with his parents for support.Speaking on Good Morning Britain on Wednesday, he said: “I had the full gamut of Covid-like symptoms of fever, cough, fatigue, nausea... and that lasted for about two weeks or so.“It was very intense.