Christine McGuinness reveals she has been diagnosed with ADHD

Christine McGuinness has revealed that she was recently diagnosed with ADHD, a few years after receiving an autism diagnosis in adulthood.

The 34-year-old model, who shares three children with TV presenter Paddy McGuinness, told the Daily Star she has now been formally diagnosed with ADHD, autism and dyspraxia.

Read more: Christine McGuinness says son became underweight due to sensitivity

Attention deficit hyperactivity disorder affects behaviour and concentration, and may also lead those with the condition to act on impulse.

It is estimated that between two and four per cent of adults in the UK have ADHD, though many of those are undiagnosed cases.

Watch: Christine McGuinness trying to be more like herself after autism diagnosis

"Knowledge is key. If you know the situation, you’re able to deal with it. So getting a diagnosis has really opened up my life," said McGuinness.

She added: "It’s given me so much more opportunity to understand why I was the way I was."

Read more: Christine McGuinness cut chin doing Dirty Dancing lift

McGuinness has spoken openly about autism in recent years, with all three of her children also on the autism spectrum.

She and husband Paddy fronted an acclaimed documentary last year entitled Paddy and Christine McGuinness: Our Family and Autism, in which they detailed the challenges of parenting autistic children.

McGuinness will appear on sports-based reality show The Games this week, taking part in athletic events live on TV, and told the Mirror she is struggling with the emotional side more than the physical.

"Having to do it with a stadium full of ­people for me is so overwhelming and it petrifies me and as we’re getting closer I’m having meltdowns – it’s hard," she said.

The star added: “It’s sensory overload anxiety times 1,000. No one is feeling great about it being on telly and the place being full. For me it’s just an awful lot more and it takes over – I will panic.”

Read more: Christine McGuinness says there may be genetic link around autism

But McGuiness said she is determined to persevere for her kids as she doesn't "want them to ever think autism can hold them back".

The Games starts on ITV on 9 May at 9pm.

Watch: Trailer for McGuinness family documentary about autism