What would a broken rib feel like? I did feel his body but he tends to tense up when I feel along him or gently squeeze. He doesn't get defensive or hiss or ball up at all though, and he hasn't since this happened last night. Regarding it being him passing gas, I was thinking that too, but it didn't seem like anything left his body. It felt like a release of something inside his body. I was holding just below his midsection and that's where I felt it.