Mare kicking out when leg is used

[McScheres]

I have a pony we bought a few months ago who up until 6 weeks ago never put a foot wrong under saddle. We took her away to an event for 3 days of jumping where she was perfect and flying round her courses. When we got home she had a couple of days off, a couple of days hacking then when we went to school her in the arena she was really unhappy and not wanting to move forward and would kick out with her right hind and get disunited whenever my daughter used her leg. Also not wanting to jump (this pony loves to jump) She was also a lot grumpier on the ground to handle. Since then I’ve had her scoped (all clear) and had her on Equishure for hindgut & had her overies scanned and seen an osteopath. A month later she is much happier in herself but still not right under saddle although slightly better. This only happens when we try to school her, she is fine out hacking. Has anyone any ideas, it could possibly be a behaviour thing but it came very much out of nowhere and I don’t want to get cross with her until I have checked every possible issue first.

 

[ycbm]

This only happens when we try to school her, she is fine out hacking.

What's she like if she's schooled in a field? Is it the location or the circling? It sounds like she injured something on the course that only hurts when she's in a small area not on straight lines. Has a vet seen her?

You would get more answers if you put this in Tack Room.

 

[McScheres]

What's she like if she's schooled in a field? Is it the location or the circling? It sounds like she injured something on the course that only hurts when she's in a small area not on straight lines. Has a vet seen her?

You would get more answers if you put this in Tack Room.

Thanks. She’s also the same when schooling in a paddock although I would say slightly better. Vet has seen her and thinks she’s taking the mickey but I honestly think she’s trying to tell us something.

 

[ycbm]

I'd put money on it that your vet is wrong, so much so that I would find a new one. You can pinpoint an exact time of additional stress when this happened, during the 3 days jumping clinic.

I think you need to get her to a hospital for a workup if possible. My first guess, because of the canter disuniting and nothing being obvious would be deep sacroiliac issues.
.

 

[Bellaboo18]

Gosh it's so frustrating when horses try and say something hurts and vets right it off as being naughty. Haven't we moved on from putting everything down to behaviour???

OP I think you're right and echo what YCBM says about getting a workup. Alot of problems have similar symptoms but think SI is a good shout.