Hello I have studied your case with diligence. Due to multiple systemic diseases can be degenerative wear of muscles and ligament and loss of elasticity of muscles, due to deficiency of VIT B12 and carnitine these symptoms can be aggravated .so supplements of these nutrients can relieve pain. Another associated factor can be due to osteoporosis of bones there can be diffuse pain all over body. Check your bone strength with DEXA SCAN and you can start medication according to level of osteoporosis, I will advise you to do regular physiotherapy and exercises as my patients find much relief by these therapies. NSAIDs, DMARDs (disease-modifying anti-rheumatic drugs) are prescribed in severe cases of arthritis. Newer biologics have role in RA. I have lot of experience of patient of RA and long term results with allopathic medication are not satisfactory,so consult me directly for further assistence. There is good role of diet and achieve correction through it,for details you can directly contact on my profile http://doctor.healthcaremagic.com/doctors/dr-vaibhav-gandhi/63503 Hope this answers your query. If you have additional questions or follow up queries then please do not hesitate in writing to us. I will be happy to answer your queries. Wishing you good health. Take care.