Pain in my fingers near my knuckles?

Possible diagnoses: If the main problem is joint pain with activity and the joints are larger and feel bony, osteoarthritis is a possibility. If there is a soft squishy joint swelling and morning stiffness, rheumatoid arthritis would be possible. In RA several joints are affected and usually both hands. Another possible diagnosis is simple tendinitis, usually from overuse. See your primary doctor first.