I have been suffering from resting tremors and twitches for about 2 years. A year ago a neurologist diagnosed me with "all over the body" restless leg syndrome. He put me on Ropinirole which helped a bit, but not entirely. A year later, he finally decided to test my blood more thoroughly. It turns out I had too much vitamin B6 in my blood. So after I stopped taking Vitamins with B6 my twitching and tremors lessened over time. While they are not completely gone, they are better, and at least I am not awakened at night by twitches.