Are any of these behaviours familiar?

• Reluctance to be groomed
• Favours one rein over the other
• Shows lateral stiffness
• Reluctant to canter on one lead
• Hollow backed
• High head carriage
• Head shaking
• Bucking
• Cold backed when tacked up
• Lack of poll flexion and bend
• Head tilting
• An uneven stride length
• Holding the tail to one side
• Unexplained loss of performance