@shanehall Hello and welcome to Connect. I can relate some experience with my father in law a few years ago. He developed hydrocephalous with increased pressure on the brain from spinal fluid in his elderly years. He had surgery that placed a shunt to drain the excess fluid from the brain. Here is the Mayo Clinic information about Hydrocephalous and treatment.
https://www.mayoclinic.org/diseases-conditions/hydrocephalus/symptoms-causes/syc-20373604
Has your mother had a personality change or loss of balance? Has she been evaluated by a neurologist?