tightness in back / swapping legs

[ahlam1399]

horse coming back into work after having irritable bowel and ulcer treatment , been in light work while been on steroids , canter work been slowly increased , is very tight through his back and feels very sensitive so having physio next week also saddle getting checked also , right canter perfect , left canter struggling and wanting to swap legs all the time , could this be due to being tight in his back ? thanks

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