This morning I went to do the milking and Annie looks like her front knees are a little swollen. When it rained recently the water ran through their big stall (12x24) and even though I put platforms in there so they could get up out of the mud, they laid down in it anyway (?????why?????). I cleaned the hay bedding out of the stall and laid down wood shavings. I've called the vet (who only makes house calls) but she hasnt called back. Any suggestions?