Related Clues:

• Ache
• Fleeting muscle problem
• Involuntary muscular contraction
• Muscle malady
• Writer's woe
• Hiccup
• Contraction
• Involuntary muscle contraction
• Muscle cramp
• Big jerk
• Stomach woe
• Sudden jerk
• Marathoner's concern
• Throe
• Writer's cramp, for example