It began when Liz Cunningham, a mother of two, and busy IT teacher suddenly could not find her way back from the toilet to her office.
"I began to get very disoriented. I had to ask someone how to get to my office, they thought I was joking," they said.
She was just 47-years-old when she was diagnosed with Posterior Cortical Atrophy, PCA, a former of Alzheimer's.