Hello
I have been diagnosed with PD about four years ago.  I have similar minor problems with my hands trembling  and find writing/printing difficult.  I also am losing interest in eating when being served with a meal of meat, potatoes and veggies and prefer a sandwich or soup more preferable.  I have lost some weight but had lots to lose so that isn't a problem.  No problem at all with breathing.  My main problem is legs and balance - I have fallen a few times and cannot stand except for a few minutes without having to sit down as my legs also feel like jelly.  I find that laying down helps me.

I have you get help for your Mother.

Evelyn