By Hanb8

22 December 2011 14:10

My mare is around 24 years and retired, she has recently started collapsing in the field sometimes for a few minutes other times up to 2 hours. The vet has run bloods and all that seems to come back is high muscle enzymes. When she does collapse, she doesn't seem to be in any pain and her breathing seems normal. The vet doesn't seem to know whats going on! If anyone has had any similar problems or a diagnosis I would be very grateful! Thanks!