I have just bought a paint bred mare that I was hoping to breed from. When I first put her in the paddock with my other mares she started to "wink". So I left her for approx 21 days and then took her around to the stud. She was at the stud for 38 days and didn't even begin to show she was on heat. There were 4 stallions at the stud in close proximity to the mare. She was presented to a stallion each day. I even bought a "PG" injection for her from the vet which did absolutely nothing at all. She had this injection while at the stud. I have since bought her home and this morning I noticed in the paddock with my other mares that she is showing some signs of being on heat ie. Winking, squirting and squealing. When I took her out of the paddock to monitor her more closely - nothing again. Can anyone tell me what is happening here?