I was grooming my little coming three year old filly yesterday and discovered some filling in front of her udder area. Please tell me this is a fat deposit! As far as I know, there is no way she can be bred! Her udder isn't any larger, just the area in front of it. She's never had this before and, though I'll be very frustrated since I keep trying to get weight off of her, I'll feel better knowing this is just fat! Funny thing is, it wasn't there last week.....