Oh, Carolyn,
I'm so sorry to hear about your falls. They are SO dangerous. I know several PDers who suffered serious complications from falls that hastened progress and my mom died after a bad fall.
WebMD in collaboration with the Cleveland Clinic has some excellent tips about Parkinson's and preventing falls and maintaining balance. It is worth reading and printing.
http://www.webmd.com/parkinsons-dise...eventing-falls
Please please be extra careful,
Judith