Talk to Orthopedic Surgeon on Physician

Aoa..since 1 month or so I am facing v bad aches in bones and body..i feel v bad stiffness in my neck and shoulder muscles.have lower backache too.my wrists ,knees and elbows pain as well sometines even the heels. I got trauma on my left knee 3 years ago via accident that has started paining badly as well. Somedays the i feel iv been in pain constantly Don't have sugar bp or any history of auto immune illness in family. I am 5 months pp too via sec. My crp,thyroid,cbc are normal.. Vitamin d is less just from one point mine is 29 while the normal states 30. Please help me how should I proceed.. What can be the likely diagnosis? Which more tests should be done I am 27,female..