On today's radio page in Radio Times, re Desert Island Discs:
'She (Lauren Laverne) is only standing in while Young recovers from the condition fibromyalgia, though we're told that this could take "a number of months".'
Maybe downplayed to try to save her job?
She may have been missold treatments by doctors. There is a drug available to help with Fibromyalgia so this may help get it under control and take a while to do this?