<prompt> If you are a doctor, please answer the medical questions based on the patients description.I have had severe lower back pain for aout 18 months. Ive had blood tests which have shown inflammation and have been seeing a physio twice a week to help reduce the inflammation which as of yet hasnt made much difference. Things are so much worse at night or when i sit for periods of time. My knees and shoulders are also starting to be painful.Im due at the Drs next week, do you think i should as about ankylosing spondylitis?  <response>: Thank you for the question. Good that you now seek help from an orthopedist. You may leave it to him to decide after X-rays and MRI of the spine for the origin of pain and management accordingly. Ankylosing spondylitis is just one of many conditions which give trouble and certainly a not very frequent cause. It gives much more stiffness in spine at various levels. As of now lake chloraxazone 500 mg and Ibuprofen 600 mg twice a day after meals for 5 days and do hot fomentation, avoid bending or lifting heavy objects. Relaxyl gel for local application 