It is a condition wherein your body muscles contracts and relaxes repetitively medically termed as seizures. This usually affects single or group of muscles of the body.

Symptoms include:

• Brief blackout.
  Loss of bladder/bowel control.
• Clamminess or sweating.
  Involuntary spasm or jerking.
• Clenched jaw.
  Shaking of entire body.
• Biting the tongue.
• Stiffness of muscles.