What is the difference between Parkinson's and Parkinsonism?

Parkinsonism is any condition that causes a combination of the movement abnormalities seen in Parkinson's disease — such as tremor, slow movement, impaired speech or muscle stiffness — especially resulting from the loss of dopamine-containing nerve cells (neurons). Not everyone with Parkinsonism has Parkinson's disease. Parkinsonism can be caused by medications, Lewy
body dementia or other illnesses. It's more about symptoms than the disease.
Take care,
Carol

Do these symptoms get worse like Parkinson's do? What can I expect to happen to my husband in the future