Ben Shephard has spoken about the grief he felt following the recent loss of a close friend during Friday's Good Morning Britain.MORE: Ben Shephard shares rare photos of wife Annie during glamorous outingSpeaking with Reverend Richard Coles about his upcoming Channel 4 documentary on grief, the 47-year-old host revealed he was completely "shocked" as he struggled to come to terms with the death.WATCH: Kate Garraway and Ben Shephard overcome with emotion after GMB deathHe explained: "I lost a very close friend recently, a really big shock, out of the blue. And it was another friend that said grief is a bit like a wave - it hits you suddenly and then it dissipates and then suddenly, randomly it comes back out of nowhere and it hits you again."READ: Reverend Richard Coles shares heartbreaking post following death of partnerMORE: Ben Shephard shares rare photo of son Jack - and cracks 'hilarious' dad jokeBen added: "That's certainly something that I've experienced.