I recently bought my first full sized horse a couple months ago. Today I was out brushing her and noticed something poking out her side so I put my hand over the bump and I could feel some thing hard. I held my hand in place and felt the whatever it was slip away and then there was nothing. A few moment later the same thing happened again. I looked and she has no bag at all. She is only 2 so I am hoping she is not bred. I'm wondering if this could have been some thing such as gas? Or does it sound like I have a bred filly????