Thanks for posting your query
Pain in joints and muscles all over body seems to be due to deficiency of vit d3. If there is morning stiffness
present , cause could be immunological arthritis
. Investigations like CBC, vit d3 level, Ra factor, ESR
etc. Consult you doctor for thorough evaluation and traetment according to that.
Hope this will helps you.
You can contact me directly through my profile
Dr Saurabh gupta