Coronation Street, who’s son Oliver has been unwell.Earlier in the year, Oliver suffered a series of terrifying fits, which understandably left his parents with extreme worry as they brought him to the hospital to see what was causing them.However, after a number of tests done by doctors, it will be revealed that Oliver has a mitochondrial disease which is incurable.After suffering from a number of seizures and undergoing some tests in hospital, Dr Ward warned the Leanne and Steve that their son