GoT's Kit Harington 'lost his way' before rehab

Claims have emerged that Kit Harington had "lost his way" before checking into a treatment facility.

The 32-year-old Game of Thrones star checked into a treatment facility last month after the ending of the hit HBO show - on which he starred as Jon Snow - "really hit him hard", and now a costume designer for the program has said it was clear leaving the show behind affected him, because he was always a "sensitive soul".

Costume designer Michele Clapton told Us Weekly magazine: "They were children when they started. And it became such an enormous thing, and I think when you stop, it's sort of a huge security blanket is taken away.

“I mean, they all became friends with each other, and then suddenly, there's nothing to go back to. So I would imagine that had something to do with it. He lost his way a bit.”

Michele said that Kit was a “sensitive soul” who visibly upset in the final real through, but she’s “sure he’ll be ok”.

Kit checked into Connecticut's Privé-Swiss wellness facility after self-referring himself to the centre last month to work on some "personal issues".

"Kit has decided to utilise this break in his schedule as an opportunity to spend some time at a wellness retreat to work on some personal issues,” his representative said at the time.

A source told the New York Post newspaper's Page Six column: "The end of 'GoT' really hit Kit hard ...

"He realised, 'This is it -- this is the end', it was something they had all worked so hard on for so many years. He had a moment of, 'What next?'

"He's in the clinic predominantly for stress and exhaustion and also alcohol."

The insider said the British actor has the full support of his wife, former co-star Rose Leslie.

The star recently admitted he had a "full-on breakdown" after filming his final scenes for the show.

"My final day of shooting, I felt fine ... I felt fine ... I felt fine ... then I went to do my last shots and started hyperventilating a bit ...Then they called 'wrap' and I just f***ing broke down,” he told Esquire.

“It was this onslaught of relief and grief about not being able to do this again."

With additional reporting by Bang Showbiz.

If you are concerned about the mental health of yourself or a loved one, seek support and information by calling Lifeline on 13 11 14.

Got a story tip or just want to get in touch? Email us at lifestyle.tips@verizonmedia.com

Want more lifestyle and celebrity news? Follow Yahoo Lifestyle on Facebook, Twitter and Instagram.

Or sign up to our daily newsletter here.