Okay, I think I need to clarify a few things before people jump to conclusions that I am a bad horse owner.
The idea of breeding Heidi is indeed a distant after thought that will only come to mind if it is foudd out she will be retired from the arena.
If she was to be bred, I would get multiple opinions from vets before I would do anything.
I don't even know if this is a serious injury or her being off in her back/etc.
I'm just worried about her so I put this thread here in order to vent some feelings.