When Sally Crowe returned from holiday with what felt like "the worst hangover ever" she had no idea it would transform her life forever.

The illness would leave her bedbound for almost two years and struggling with its after effects for more than a decade, but she says it has ultimately given her a new outlook on life.

Sally, who runs a 65-acre croft with sheep and cattle in Caithness, has become a popular figure after featuring on BBC TV show This Farming Life.

But the 48-year-old says her approach to farming had to change after she caught Q fever on a visit to Western Australia in 2012.

She had been visiting friends who were working in a sheep-shearing shed when she caught the rare and potentially life-threatening airborne disease contracted from farm animals.