I'm feeling pain in right side of belly button nd right kidney side i had this pain so many times im on periods now help plz?

Pain along R Kidney: Pain along R side belly button- R kidney. When was the first time? how often you have it?, what is the severity? does it burn when you urinate?. Have you seen a physician? a kidney stone, s the worst pain, 10/10, is this what you get? Otherwise, with so many structures, Liver, gallbladder, colon, small bowel, you will require a CT?MRI of the abdomen. See a General Surgeon, for a good physical.