Piers, 55, was back on top form but it appears that things were completely different for the outspoken host over the weekend.
Chatting to his co-star Susanna, 49, ITV star Piers confessed he suffered from heat exhaustion last Friday after playing golf in the blazing sunshine, which left him bedridden for two days.
Opening up about his brief illness, Piers said he felt unsteady on his feet after getting out of bed on Saturday.
The TV personality told Sussanna: “I woke up on Saturday morning and suddenly went “wooo, wooo”.
“I hadn’t had a single thing to drink – I had heat exhaustion. I spent two days in bed. I basically couldn’t walk, couldn’t breathe. I could barely talk.
“It was a utopia for my critics really. Heat exhaustion is actually quite unpleasant, I’ve discovered. I was very tired. I just slept it off. “
Talking about his symptoms with GMB health expert Dr Hilary Jones, Piers added: “Doc, it was hot last week, heat exhaustion is actually quite unpleasant, I’ve discovered.”
“Very unpleasant,” agreed Dr Hilary, before revealing the symptoms associated with the illness: “Headaches, dehydration, not being able to sweat…”
Piers went on to reveal how he overcame his exhaustion: “Very tired… I just slept it off, and a lot of fluids. I am taking dioralyte.”
His brief sickness spell thankfully didn’t put a dampener Piers’ tenth wedding anniversary to wife Celia Walden, which fell on Wednesday last week.
To mark the special occasion, the presenter shared a stunning photo of the pair taken on the big day.
The image shows Piers and Celia strolling through the grounds of their venue, St Mary’s Church in Swinsbrook, after their ceremony, before heading to their reception via a vintage Rolls Royce at a nearby pub.
Piers cheekily captioned the post, “10 years ago today. I made an honest woman of Celia. And her lawyers hoped it would never last!
“Happy anniversary to my considerably better half.”
Piers has been hosting ITV breakfast show Good Morning Britain alongside Susanna since 2005.
Good Morning Britain airs weekdays on ITV at 6am