Harrison TB and Benatar M (2007) Accuracy of repetitive nerve stimulation for diagnosis of the cramp–fasciculation syndrome. Muscle Nerve 35: 776–780 Cramp–fasciculation syndrome (CFS ...

HAVE you ever experienced a gentle tug or what feels like a heartbeat below your eye? The chances are you have an eye twitch – it’s something most people will get from time to time.

Minor muscle spasming can occur due to health conditions like nutrient deficiencies. More severe twitching can be a symptom of serious health conditions, including those affecting the nervous system.