Oral Chelation and Also Energy Patterns of Disease
There is a wonderful oral chelation product you can buy that is excellent for stripping toxic metals from the bloodstream. It's something my wonderful wise womyn health store lady turned me onto. It's called PCA-Rx. Basically, it's a liquid that's tasteless, and you take it in the morning before you have food, letting it dissolve in the mouth, not swallowing it. It's a treatment you would only do for a few weeks, not for prolonged periods. I highly recommend it for anyone who notices that they have strong reactions (or concerns) whenever they have traditional dental work done, because I found it stops that woozy horrible post dental visit mercury overload that I always experienced. (I need to switch over to a holistic dentist who doesn't use mercury for fillings but haven't yet.) Also, did you know that if you have even ONE traditional mercury filling in your mouth, that metal is gradually leaking out into your bloodstream with every bite you take? So for any of you who worry about mercury toxicity from dental work, you may wish to try this as a short-term therapy. It can serve as a great system purge, only it doesn't create uncomfortable side effects like bloating, diarrhea, or other disruptions. You don't have to go to extremes or disrupt your life to take it, you just take a few squirts in the morning and you're done with it. I believe it cured me of my chronic fatigue some years ago, which I suspect may have been brought on by mercury overload from old mercury dental amalgrams.
You can read more about PCA-Rx at the manufacturer's site:
http://www.awakennutrition.com/
Another thing that might be good for you to focus on is the metaphysical energy pattern behind Parkinson's. Disease patterns can be something we take on as a spiritual challenge, and some of it is related to tribal stuff - you know, patterns of energy within our soul family. As one person works on healing and transmuting these patterns, the whole tribe benefits.
Some of the core energies I've discovered behind Parkinson's have to do with "lack of mobility," or "perception that there is an inability to move." I see it in a lot of family groups who have been members of the "under class" or poor peasant caste in various lifetimes. They get used to carrying around this core feeling of hopelessness, often focused around lack of resources and lack of social mobility (lack of access to better income streams, better housing, or a nicer standard of living.) These experiences get beaten down into the soul and can affect the person over the long haul in other/future/alternative lifetimes. (I don't believe lifetimes progress in a line, by the way, and I also don't personally ascribe to the idea that you HAVE to keep reincarnating. It's all about choices. That said, many of us are drawn to keep coming back here due to the strong bonds of love we feel with other souls. So it's all good. There is no "right" or "wrong" when it comes to reincarnation - it's all just experiences we choose in order to grow.)
Some people I've worked with who experience tremors that are more "low level" like yours have been successful in mitigating or relieving those symptoms by examining these patterns in their own life..... here are some of the questions they've meditated on:
***What limiting or depressing situations have you learned to accept as unchangeable in your own life? Do you feel stuck at one job, stuck in one profession, stuck in one life mode, stuck in one geographical location, etc? Are you really stuck there, or can you find a way to open yourself up to other options, even if you only investigate them as daydreams? (Fantasizing and visualizing about changing your circumstances can be enough to release stuck energies in your nervous system.)
****Is there a close personal relationship (even if it is a loving one) in which you have accepted certain conditions, boundaries, or limitations, feeling that you don't deserve to change these or would disrupt the relationship if you change these? Examine any area of your personal life or family life in which you find yourself "making sacrifices" for the other person. These "sacrifices" may actually be binding you to feelings of limitation that are taking a real toll on your soul.
****What beliefs and thoughtforms do you constantly revisit that perpetuate feelings that you can't move, can't change, can't transition from one thing to another? (Examples might be people always saying that you can't leave the city because there are no jobs in the suburbs, and you have come to accept this as truth even though you're miserable in the city; another example would be people telling you that you're too young/old pretty/ugly smart/dumb to be doing X, Y, or Z. ) Take a hard look at anything you continually cycle through in your thoughts that is about "Can't" and start changing it to "Can" as much as possible.
Some positive keywords to focus on might be:
**Flexibility
**Adaptability
**Flow
**Improvisation (ability to handle change on the spur of the moment)
**Serenity
Here's wishing you the very best as you get to the bottom of this mystery and start reclaiming your health. You can do it! 
Lipstick Mystic