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hhmmmm, maybe...but when we were cleaning her left foot it looked fine and she seemed fine. It was just her right one..The last time we did her feet they were all fine. How quick can an abscess form?
Pain when weightbearing is not necessarily accompanied by pain when NOT weightbearing e.g. when you're picking out THAT foot. So, feel carefully for heat in the foot and lower leg (compare to other foreleg), and look for lameness when in motion.
An abscess can blow up within almost literally hours (obviously it is brewing longer than that, I mean, but the pain can come on that fast). You do not necessarily SEE anything at all -- indeed, you don't usually see anything til after it has ruptured and drained, which usually *ends* the pain
Not that it's necessarily an abscess, of course, but that is a common possibility if this is a lameness issue.
My money is still on lameness in the opposite foreleg, but if not, two other possibilities would be that she is hurting in the particular part of her ankle (or etc) that you grab to pick up that leg (perhaps a cut, or a thorn, or a bruise), which would not necessarily produce observable lameness on that foreleg; or joint or tendon pain in that foreleg (the one that she collapses when you pick it up) which *would* likely produce observable lameness.
Not everyone is equally sensitive at seeing subtle lameness however.
If it were me, if she's still like that tomorrow I'd call the vet or at least have someone really good at checking horses over for lameness take a whack at her.
Good luck,
Pat
