Possible Clues:

• Crick in the neck, e.g.
• Something beyond your control
• Cramp or twitch
• Twitch, e.g
• Leading surgeon maps out muscular contraction
• Health resorts get a number fit
• Resort to sergeant major to get fit
• Burst
• Burst drains running up to motorway
• Second one�s during afternoon having sudden convulsive action