United Kingdom, Feb. 8 -- Sir Billy Connolly feels "out of step" with the world amid his Parkinson's struggles.

The 81-year-old comedian was diagnosed with the degenerative disorder more than a decade ago, and Billy is very conscious of its impact on his everyday life.

He explains on 'Billy Connolly Does ..': "Being unwell is strange. Everybody else is OK and you've got this thing that's wrong ... you're out of step."

Billy has been teetotal for nearly 40 years after previously struggling with alcoholism.

Despite this, the stand-up star admits that the threat of alcoholism has never gone away entirely.

He recalled: "I was in a hotel in Arran in the Clyde and I ordered porridge for my breakfast.

"I'd stopped drinking about a year bef...