Claire McDonald was a formidable corporate professional fuelled by her career and bustling family life, with dreams of enjoying "more freedom, less worry" once her children had flown the nest . But her future aspirations, household finances and even her "sense of purpose" came tumbling down when she was diagnosed with a progressive disease . The mum had found herself tired and tripping up. Then she began to forget words mid sentence but had no idea of the cause. Thinking it was stress she was