hi read your query i am sorry but i cant give you the diagnoses immediately multiple joint pains specially in the lower limbs well i am assuming there is no pain in the upper limbs and hands i think you may also be having some joint stiffness especially for almost an hour in he morning. do you have any joint swelling? do you have any backache? and what is you age weight and height? there are many possibilities most prominent of which seems to be osteoarthritis the other causes could be rheumatoid arthritis, gout just to mention a few the list is huge i would suggest you get an x ray of the affected joints, uric acid and rheumatoid factor. let us know the reports as for esr esr is a nonspecific test it signifies that there is some chronic disease in the body some say its good marker of rheumatoid arthritis but i have seen it raised even in osteoarthritis, gout and its known to be raised in many other conditions so we cannot use it to point to a particular condition let us know the reports then we can move from there best of luck