This is very true, @kshansen. No two PD patients have the same symptoms or respond similarly to the same treatment. The one thing that is helpful to most with PD is exercise. How long have you had PD?

You mention difficulty moving your legs and arms. There are some great YouTube videos that you can try once your PT ends. If you go to YouTube and search for Exercises for PD, you will find lots of chair and/or standing videos that will help you work on the ability to move different sides of your body at the same time.

One of my favorite YouTube channels is yes2next. While it is not specifically for PD, it is a great way to practice the movements you mentioned and gain flexibility.