Hi, welcome to our site. I am Dr Saumya Mittal, MD. Read your query. That is a very significant question and i appreciate your problem. I will try my best to answer your query I am sorry to hear of your pain. Now your localization of the pain, if accurate brings us to a very limited number of problems. The first possibility is a calculi. Now I would expect that more commonly in people much older, but incidents do happen in younger population, especially if their fluid intake is low, or if the infection may happen. The best way to detect this would be via a ultrasound of the affected area. Also you should have a lot and lot of water. This will help your kidneys wash of the calculi more easily. It may also be due to constipation. Taking lots of fluids and having high fiber diet is a good way to relieve the constipation. Sometimes this is just gas. A plain antacid may help in such cases. I hope this helps you. Inform the reports mentioned above/if any other so I can be of help further. I have given you the answer to the maximum considering the information provided. The results of the tests could further enhance my answer to you. Please do understand that some details could be extracted from a detailed history and examination. Please feel free to ask another query. I would be glad to help you. Looking forward to your return query with the details asked so that I can help you further. (If the answer has helped you, please indicate this) Best of luck. Dr Mittal. MBBS, MD (Internal Medicine), CC (Diabetes Mellitus), DNB (Neurology) Consultant Physician and Diabetologist JS Hospital Ex Apollo Hospital, Delhi Ex Kailash Hospital, Noida