The late, great Andy's original version was on his By the Hush album, which I still have on good old vinyl. It was recorded with full band, not unaccompanied. I presume the Folk Police above, albeit twenty-odd years ago, would have disapproved of Andy's own rendition.

Polly's explanation of 'bollockititis' is spot-on: I suppose you have to be from this side of the pond to pick up on idiomatic phrases like this. You can also make up a word like "Bull$h¡titis", it's just that that's not what Andy wrote, or meant.