Grandma might have Parkinson's

So recently my family has been noticing that my grandma has been having a hard time moving around. Two of her younger siblings that have been nurses for years, one as a head nurse in a nursing home, have both said she displays the signs of Parkinson's and the doctor pulled my aunt aside and confided in her that he/she believes that it's Parkinson's as well. My grandma is petrified that she has it but won't know for sure until October 3 when the results come back. Prayers and advice would be appreciated.