The closeness of the organs in the abdominal cavity can make it hard to tell which one is in pain. So, when I experienced extreme pain across my belly button, I assumed it was probably intestinal, but I was wrong.
Even my doctor thought my pain was related to my digestive system. She diagnosed me with irritable bowel syndrome and medicated me for that.
However, the pain persisted. So, she decided I needed a CT scan. This revealed that I had a kidney disease.
Kidney pain can be felt all throughout the abdominal cavity. I have felt it in my back, in my left and right front sides, and across my waist. Now, whenever I have pain in my abdominal cavity, I attribute it to my kidneys.