My daughters 25 year old mare has a swollen spot on her belly. It's not that her belly is swollen, it is literally a small raised area. There is one right behind her front leg and one a little farther up. They are pretty big around...like maybe the size of the bottom of a can of drink and stand up about a centimeter. Wish I had my camera with me because it's really hard to describe. The horse is moving and eating normally. The places did not get any worse this evening. I made the decision to just keep an eye on them and watch for any other problems. There are some at my barn that feel that I should go ahead and call the vet. Neither of us have had experience with this kind of thing though, so what do you guys think?