hello doctor, i am 32 years old. 2 months back i had a inflammation in my lower part of the leg joint on the lef leg.I consulted my nearby physician and took medicines and also she adviced me to tie a bandage and give rest for the leg for a period of 7 days and everything was fine. Last month again i developed inflammation on the right leg. I checked the ESR value for 1/2 hr was 30 mm and 1 hr was 62 mm. Then i took a series of test ANA -Negative(Value-1.3 U/ml), ds DNA (Elisa) - Negative(19.00 IU/ml), C-REACTIVE PROTEIN:2.8 mgs/L, Rheumatoid Factor-6.0 IU/ml, Anti CCP - 10.1 U/ml(Positive).Anti-CCP alone appears to be positive. what does it mean?? please advice