fasciculation
This forum is for questions and support regarding neurology issues such as:
Alzheimer's Disease,
ALS,
Autism, Brain Cancer,
Cerebral Palsy, Chronic Pain,
Epilepsy,
Fibromyalgia, Headaches, MS, Neuralgia, Neuropathy, Parkinson's Disease, RSD, Sleep Disorders,
Stroke, Traumatic Brain Injury

I strongly recomend that you also look into stress disorders depending on your stress level. These twitches are non-specific and since they occur in the absense of other symptoms I doubt that there is anything to worry about in the area of the serious neurological conditions that can cause them such as ALS, MS, to name a few. This is further clarified in your normal studies of the bain, et al.
Many believe that aside from stress dietry issues can be to blame such as aspartame. As well, you could have heavy metal poisoning, and so on. The answer does not always lie in the obvious.
Good Luck!
JCmcc.