Related Clues:

• Burst of energy
• Hiccup cause
• Muscle twitch
• Crick in one's neck, e.g.
• Sudden movement
• Muscular contraction
• Sudden twitch
• Something you can't control
• Jerk or twitch
• Uncontrollable jerk
• It can cause one to be a real jerk
• Muscular problem
• Uncontrollable movement
• Athlete's concern
• Workout pain