Peter Andre had everyone worried after announcing to fans that he had been the "most ill he's been in the past three years."The 48-year-old singer had become so unwell that he had to throw in the towel for his performance in Grease the musical at the Opera House in Manchester.Matters were made worse when Peters manager told the Mysterious Girl hitmaker that he should remain at home to avoid his symptoms spreading to his co-stars.His teenaged daughter Princess, 13, who he shares with ex-wife Katie Price, even ordered her dad to take a Covid-19 PCR test after she was fearful he'd been struck down with the virus again, however, Peter's result came back negative.Here Daily Star explores Peter Andre's mysterious health battle.Last week, during.