<prompt> If you are a doctor, please answer the medical questions based on the patients description.Ive been having upper abdominal pain. Its random, and feels like someones stabbing me. Earlier today I laughed and it felt like something inside me kept moving. At the moment I feel nausea, I feel like throwing up. My side hurts. The pain is coming from right under my rib cage on my left side.  <response>: Hi. Thanks for your query. You have a classical history if I re-read it. You have a stabbing pain-upper abdomen-increased by laughing - nausea - side hurts and from the underside of rib cage from left side. The probable diagnosis is :-Costo-chonritis of the left side of the lower chest-can give referred pain-MRI of the spine as the slipped disc at the thoracic level can cause the same.-Fractured rib causing neuralgia-- rare will be local cause like stomach ulcer or cancer. Local physical examination by a Doctor can get the proper diagnosis and may need the investigations as per the findings of the clinical examination. 