Hello, My 16 year old daughter is experiencing a moderate to severe dull pain on her right side. Between bottom rib and hip bone - deep inside. No fever, no vomiting, no chills. Just pain. It has been happening to her for three months now, but lasts only a day or two then she doesn t feel it again until the next month. A doctor said it was not appendicitis but did not run any tests. I also took her to have acupuncture/cupping. She was supposed to start her menstrual period on Feb. 7th but it never came, which is unusual for her. This pain returned on Feb 11th it lasted one day, then she started having this pain again right now. ( By the way, she is not a smoker, drinker, drug user, or sexually active)