Can Painful Hip, Knee And Shoulder Joints Be Treated With Natural Remedies?

I have painfull hip knee and shoulder joints are there any natural remedies that will releive the pain. I use 1000 mg epervesent fit C and cod liver oil capsules every day and proprietary anti inflammatory nurofen ¶sitamol when necessary. I have been to my local hospital and seen the consultant about this he says that I require a surgical intervention in the long term but I should maintain pain relief when required. My problem is the recommended products play havoc with my bowls. So is there a natural pain relief product that doesn t affect the other funtions of the body and doesn t increase weight?