I have a sharp, burning sensation on my lower left rib cage. Kind of under the bottom, and it is also painful to the touch. It came on sudden and has now lasted over two hours. When I move my body or even take a deep breath it also hurts more. Sitting still the pain is bearable but when I move, touch, cough it gets very severe. No discoloration, no swelling or bloating, not sick to my stomach. What could this be?