Welcome to NeuroTalk:

I have to wonder after reading your post, if you had testing for B12 levels, and know your result.

Many people today have this hidden factor, which can lead to all sorts of neurological symptoms, often before anemia develops.

Here is a video that explains it for patients. One of the highlighted patients has tremors as her predominant symptom:

http://www.youtube.com/watch?v=BvEiz...ature=youtu.be

Low B12 can be treated orally today, for pennies a day over the counter. If doctors test for this, they often rely on OLD LAB RANGES which go down into low values and people then are misdiagnosed. The new acceptable low is now 400pg/ml (but the range goes down to 200 still and that is terrible!).

Here is a thread with more detail about B12...
http://neurotalk.psychcentral.com/thread85103.html

One reason this may happen also is that there is a genetic error in methylating B12 to its ACTIVE form in the body... called methylcobalamin (this is the form to use to supplement).
The error is in the DNA and there is a test for it MTHFR, that a doctor can order, or you can get at the 23andme website.
This error happens in 10-30% of Americans. It runs in families, therefore.
https://www.23andme.com/

Anyone with neurological symptoms should have a proper evaluation for B12, with the accurate interpretation of the test results. There are two other tests, that will provide information as to whether B12 in the diet is actually working... they are called MMA test and homocysteine test. Both of these tests will be elevated if B12 is in a form that is not active in the body.

So please watch the video... then visit my post which then goes into more detail. This should be ruled out, before you accept any other diagnosis.