Many people associate essential tremors with Parkinson's disease, but the two conditions differ in key ways:
Timing of tremors: Essential tremor of the hands usually occurs when you use your hands. Tremors from Parkinson's disease are most prominent when your hands are at your sides or resting in your lap.
Associated conditions: Essential tremor does not cause other health problems, but Parkinson's disease is associated with stooped posture, slow movement, and shuffling gait. However, people with essential tremor sometimes develop other neurological signs and symptoms, such as an unsteady gait (ataxia).
Parts of body affected: Essential tremor mainly involves your hands, head, and voice. Parkinson's disease tremors usually start in your hands, and can affect your legs, chin, and other parts of your body.
Hello and welcome to the forum. Thank you for your post and we can understand your worry about Parkinson's. We're really glad thought that you are working with specialists. Remember that both Essential Tremor and Parkinson's both can ave hand tremors but that they are two distinct and separate disorders. This article goes through the differences between the two and focuses information on essential tumor which is your diagnosis. https://www.mayoclinic.org/diseases-conditions/essential-tremor/symptoms-causes/syc-20350534 You don't mention your age but it is important to note that it becomes more and more common after the age of 40. They do have several medication types that are used to help control tremors. Are they talking about anythign like this yet for you?
This link is about Parkinson's Disease specifically. https://www.mayoclinic.org/diseases-conditions/parkinsons-disease/symptoms-causes/syc-20376055 You'll see that a tremor is also often present but there are typically many more things involved as well.
I would continue to work with your neurologist but at this time, it sounds like they feel certain this is Essential Tremor and not Parkinson's related. Note any changes in symptoms and, of course, let them know. In the mean time, I'd not assume the diagnosis will change. Here's a bit more information on managing Essential Tremor.
Let us know what you think.