<s>[INST] i have been having belly button pain for about 3 days now. its started off slow, but got much worse since. it hurts to bend stretch, and sometimes when my stomach contracts. i do have my bely button pierced , but this pain seems to be deeper in the belly button. right now theres also a pain more so to the right , and underneather the belly button. any ideas ? [/INST] Hi Thanks for using Chat Doctor Forum, Food poisoning can cause belly button pain when you eat contaminated food, usually resulting in some sort of bacteria invading your body.  The vast majority of food poisoning cases are of this type, and it occurs a lot more often than it is diagnosed.  If you think you have food poisoning, which can cause a lot of different symptoms in addition to belly button pain such as nausea, vomiting, diarrhea, etc. If you are not suffering from food poison then I advise you to do an Ultrasound abdomen to rule out appendicular inflammation which can be at starting stage. I Hope I Provided Useful Information. Do ask Further Questions to help You get well soon. Regards Chat Doctor. Kingston John David </s>