He said: "I have Poland Syndrome, so I only have one pec that was brought to the attention of a lot of people so I'm glad that the Poland Syndrome [was brought to people's attention].”"I remember sitting down and tears falling out of my eyes watching the Olympics - it was given a name and it hadn't been given a name."A Poland Syndrome charity said they'd never had so much publicity and an 85-year-old man said he didn't know what it was called until he read the piece.“Because people look at you and it's like, 'what's going on', you feel like a weirdo and now I feel like I am who I am."According to the NHS, Poland Syndrome is a very rare condition that is characterised by webbing of the fingers and of underdevelopment of chest muscle.Following his stint on Strictly, Matt spoke exclusively to Express.co.uk about his time on the show as he promotes his upcoming Christmas single, The Beautiful Unknown.Matt explained that the criticism he received for not "smiling enough" was down to "stuff" going on in his life, hinting at personal woes he wanted to keep away from the dancefloor.Express.co.uk asked the Bros singer if he paid attention to any of the critiques on social media or from the judges.Matt said: "Apparently I wasn't smiling enough on Strictly and I'm sure you know there's stuff going on in my life that had to take precedence and I had to resolve that."I didn't want to reveal either because it was painful and I just, you know, had to hold on and I wanted to put my best foot forward, no pun intended.So I didn't feel the need to share that on social media."Matt recently moved back to the UK after living in the US for 25 years, as his return sadly took place without his mother and sister around to support him.