Chloe, Funny you should ask, but a visit to the Dr. 2 weeks ago re-diagnosed me with PD+, whatever that is. The reason given was because I hadn't been responding to the medicine with no noticable on & off times. What are they telling your mother? My balance is terrible, i get around with wheels. I was diagnosed six years ago and have been progressing fast.(not walking, not writing well, not speaking clearly). Sorry! Patricia six years-age 63 now