trembling can be nervous system issues, such as the candida inhabint the myelin sheathes for the nerves that lead to thsoe areas; or an irritated Vagis (sp?) nerve which is a major nerve, or even parasites.
You may need nerve food, which would be Vitamin B12, A, E. Twitchyness is imbalance of electrolytes, usually potassium, calcium, magnesium.