I have a burning sensation from the neck, to shoulders to the lower back. pricking pain in the palms and finger joints. i have done the following tests, h-pyroli, amoeba, hiv aids, pneumonia, typhoid, all -ve. i treated all the above mentioned

Time to see a doctor: It is not feasible to provide a meaningful opinion without taking additional history, physical examination and may be some tests. It would be prudent to see your doctor and discuss if you may be depressed. Counter-intuitive as it may seem, exercise may help. Start with low intensity exercise such as walking and gradually increase the intensity as tolerated. Wish you good health!