Brief Answer: You should be visited by a rheumatologist. Detailed Answer: Hello, Thank you for using HCM. I understand your concern. As you are experiencing new symptoms, you should see a rheumatologist. He has to do a physical exam to you, in way to detect the cause of your pains. Your doctor might ask you to bend in different directions to test the range of motion in your spine. He or she might try to reproduce your pain by pressing on specific portions of your pelvis or by moving your legs into a particular position. Also, your doctor might ask you to take a deep breath to see if you have difficulty expanding your chest. You should have a X-ray to check for changes in your joints and bones, also. An MRI may be necessary to provide more-detailed images of bones and soft tissues. Meanwhile you should take in consideration that the main treatment of Ankilosis Spondylitis remains the fisical activity. It would be better to begin the exercises after a shower with warm water which will help you with the stiffness. Swimming, volleyball, etc are the main activities which help decreasing the pain level and conserving the normal posture of your body. Is recommended to stay overthrown for 15-20 minutes for several times a day. If the symptoms does not improve with the fisical activity and the antiinflammatory drugs (CO-DICLO-MISO 75MG), then you have to see a reumatologist for more specific treatment. Hope this is helpful. Let me know if you need more clarifications. Otherwise please close and rate the answer. Kind Regards,