Welcome to the forum. It is understandable that you would all have lots of questions about Parkinson's after your Father's diagnosis.
This forum is a great place to share experiences and find tips and information. We also have lots of information on our website, which might be helpful to have a read through, including this information sheet on falls.
We also have a free and confidential Helpline, which is a great place to start if you want to talk to a Nurse about symptoms, find out more about support that's available, or just to talk things through. The Helpline number is 0808 800 0303 and is open from 9am - 7pm on weekdays, and 10am - 2pm on Saturdays.