Okay I'm not trying to be a weirdo but this is to do with stress yes I'm not sure about the booty thing but it's pressure and the urge to poop it's used as a lubricant to help make it easier to pass and it's due to not getting enough nutrients fiber and other things in your diet this is what I've been told by a doctor and it can also be caused severe anal tearing or stretching due to sexual activities meaning anal and things like that I'm not sure about the gluten I'm going to check with my doctor on that me and my OBGYN are super tight LOL XD