I have a very similar disorder to parkinson’s. I take parkinson’s med. Levodopa definitely makes people psychotic- that’s why people end up with psychosis afterwards.
However, for me the inability to do things you could do, such as move around with ease, can be lost. I miss walking around like other people and doing things I love. I can’t do that anymore.
I’m sometimes worried that I can’t work because of my disability and end up bedbound. I’m just thankful that I am not at that stage.