Is this your first PH? Usually pain accompanied by the splats (or vimitting depending where the toxin is along your digestion path) is your body teling you something isn't right and it's trying to get rid of something asap. I am no biochemist, nor am I a biology expert, but are you on any other supplements or did you eat anything else differently? I would say if you havent dabbed much in the PH world to start off on a lighter dose (1 cap). Without getting too much into the nasty details, it should be noted that if your stool is a deep dark color, or has blood in it, then you may have some type of internal bleeding/gastrointestinal infections/heavy inflammation. If that is the case, I would stop what you're doing and go to a doctor asap, even if it's just for reassurance. Sometimes the body needs to adjust to these harsh compounds, that is why starting off on a lighter dose (especially if you are newish to this) is advised as it has less of a "shock" to the system. Keep in mind I am new to this myself so look for someone with more experience to chime in on the actual compound and proper dosing/expected sides.