Rheumatoid Arthritis
That's amore, baby.
The ex-Emmerdale actor has admitted taking part in the BBC show will be "tough" but vowed: "I am up for the challenge."
"Those of us with invisible disease and/or disabilities often deal with being misunderstood, and even judged."
The daycare owner's premature exit will air as part of this week's episode.
I don't define myself by my condition and accept it's just one of the many things that make me who I am, but that doesn't mean I don't falter.
My advice, if you have a long-term condition like me, is to be upfront about it.
I have come to terms with the fact that my rheumatoid arthritis means I cannot do everything. I have learnt to cherish the times with friends and family and forgive myself for the times I do not feel up to it.
Magician Dynamo recently revealed his diagnosis.
RA is a painful condition affecting 400,000 people in the UK.