Also, it may be that you need more magnesium. Magnesium will help calm many muscle twitches and most of us are deficient in magnesium due to our food being deficient in magnesium.
Here is a great list explaining the different types of magnesium and how they help the body - I choose to use magnesium orotate and haven't been unhappy with the results:
/www.globalhealingcenter.com/natural-health/types-of-magnesium/