Hi welcome to HCM I have gone thru your query regarding body pain and joint swelling . I can understand your concern . Dear , on going thru your story , what I want to tell you is that your weak immune system is responsible for all the trouble you are facing . Your chronic aches and pains over body ,elevated RA factor and low vit D , swelling in joints. Chronic stomach issues pointing to possible IBS , fibro . On the whole, your immune system does a remarkable job of defending you against diseases Name of the disease dose t matter much . Our health depends upon physical activity level and the diet we take. , I would like to suggest you to Include essential nutrients - vitamins , minerals , antioxidants ,fiber Aloe vera , lemon juice , ginger , garlic. Eat flax seed, which is rich in omega-3 fatty acids, Antioxidants like turmeric powder in a cup of hot milk and You should take care to include in natural form to eradicate toxins and experience decrease in pains . For proper blood circulation , regular physical activity is essential for strong immunity and experience of decrease in pains and for long lasting healthy life . . Right things at right time . Adequate diet intake regular physical activity - walk ,yoga ,pranayam ,meditation helps achieving better results . Irregular life style ,fried , fast foods made of fine floor , too much of tea coffee , alcohol , smoking ,anger , stress , Avoiding is a better bet . All create toxins , imbalance in your system causing gas & other digestive problems , which you call IBS Sun bath early morning daily for 1/2 an hour is helpful for balancing low Vit D for strengthen your bone in your body in natural form . If problem persists , thorough check up is advised in time ,so that early treatment can be started . Hope this helps solve your query Take care All the best. wish you good health ahead