Something weird is going on with my 4 month old female pot belly, she has a strange lump in her belly and it moves around. Her belly looks like she ate a small childs basketball,very very round looking and it swings back and forth when she walks and I know it's not fat. Sometimes it looks like a snake is inside there. You can see it better when she lays on her right side. She's been wormed once a month with Ivercare paste, she eats good and has good poops ( not runny or anything like that). I wanted to use her as a breeder but I'm not sure now. Any thoughts?, Thanks.