By Seamus Duff Simon Cowell has resumed work on Britain’s Got Talent after being forced to bow out of recording due to health issues. The 64-year-old mogul worried fans earlier this month when he dramatically dropped out of filming auditions for the upcoming seventeenth season of the long-running ITV talent show. The illness he was battling was not initially revealed – but it was later revealed that he had been struck down by migraines. Now Simon is back to work overseeing auditions for BGT alongside returning judges Amanda Holden, Alesha Dixon and Bruno Tonioli. Fans will notice Simon is spor…