I am always tense, nervous and my hands shake involuntarily.
I am only 30 years old and this has been happening for the past 3 years.
What can I do about the trembling and nervousness. I am very very sad.:confused:

You should go to the doctor and get it diagnosed it could be something very serious.

Also cut out COMPLETELY artificial sweeteners and diet soda and foods containing MSG -Monosodium glutamate.
They can cause trembling and other Parkinson disease type symptoms.

http://www.mercola.com/article/aspartame/dangers.htm

Message DANGER! NOT JUST TASTE ENHANCERS (http://www.nutrition4health.org/nohanews/NNS96DangerTasteEnhancers.htm)

Once you get it diagnosed, let me know, I can give you an idea of some herbal things to take depending on if you it is your central nervous system or your serotonin levels or what.