My 14 yr old Aqha mare just came into season a couple of days ago. I was standing in front of her stall yesterday talking to her... Her tail was raised, and she was squating, her ears forward, eyes bright.... Then she got rigid and fell strait over on her side. She rolled over and almost cast on her wall. She got herself up, she was shaken, but ok.... Like she just passed out, or blacked out. I have not seen it since, and she is not acting strangely. But I am worried still. Any ideas?

Sounds like HYPP
Very easy to have tested.


Horse HYPP

Thats terrible! Hope you got it all figured out. I would have the vet out ASAP!