i get terrible aches and pains and stiffness in my joints mainly my elbows, knees and neck and most mornings have a job to straighten out my arms and legs, i dont have any swelling around the joints and have had blood tests which came back ok, i feel tired most of the time as well, does anyone else have similar symptoms?
Have you asked you GP for an Xray on the affected joints or a bone or bone density scan ..if not go back to the doctor and insist on further tests.
You don't say your age but when I was around fifty I pitched up with the same symptoms as you describe although I also had severe pain in the hips. This turned out to be rheumatoid arthritis which has burnt itself out and left me with osteoarthritis. Do get some further tests and hope you soon feel better.