Rib pain could be due to an inflamed liver. Do you have any other health issues. Like fatigue, muscle pain, insomnia or anything you consider to be unusual?
it could be plarisy a pocket of fluid between the rib cage and the lung get to your dr asap.
Have you had an ultrasound of the liver done?
Costo-chondritis is mild inflammation of the rib cartilage. If pain persists despite mild analgesics dosee your doc.
i forget about when i fell on a chair it hit my ribs on my left side and its better now