My mare suddenly developed windgalls in both hind legs (they're the fluidy swellings at the back of the leg, just above the fetlock joint) about 5 weeks ago, and they've refused to go! Somedays they are firmer and larger, others smaller and softer, but they are always there. She is not lame, pefectly happy for me to handle the legs & windgalls, and she doesn't do a lot of roadwork and is not stabled so I am at a complete loss as to a) why they developed and b) why they won't go. Any ideas anyone?