I'm not quite sure how to explain this but here is my best try. Starting Wed, I get these random cramps that are very localized on my belly. It feels exactly like a leg cramp would but with less muscles involved. It is only about a 2-inch diameter spot and just to the right of my belly button. It is pretty painful but localized and I massage it out similar to massaging out a leg cramp. Shortly afterwards, the muscles feel bruised. It has been happening several times a day and getting pretty annoying. Anyone experience this before?