it all started in august with pain in coccygeal which occured while sitting on a chair , then in september i felt pain in the joint of left leg to the hips ( acetabulum) and pain was also felt in the muscles around it restricting the movement of leg. then on 13th september a swelling emerged on the right knee just above the knee cap, it was hard and painless but pain was felt while movement. by the end of the week almost whole left leg was swollen especially the part below the knee. gradually the swelling of reduced in 5 odd days and since then i never had such swelling . but a mild swelling around the knee was still prevalent, the pain continues for a week or so then reduces and this cycle goes on. i feel severe pain in the mornings. since 5 days i am feeling pain in the joints in the hip area and the muscles around it. the pain in the coccygeal prevalent even now.................please give me a solution to this problem.