To mark the UN’s #InternationalMountainDay, here is my favourite photograph – taken in 2012, just a year before #ataxia struck.

The photograph is of myself sitting on top of a mountain on Mallorca, on the famed GR221 route (near Puig de Massanella).

I also love this photograph because it shows just how quickly, and without warning, ataxia strikes – 2012, sitting on top of a mountain (after having just climbed up there); a few years later and a 4-inch step is now a challenge.