I have knot on pinky. Also, Pinky looks swollen and crocked. Could this arthritis? It does hurt sometime even like a needle or stinging pain. It has been noticeable for about a month. Is it worth making doctor appointment for.

Also, I thought of RSD as I have nerve pain elsewhere in body.
I thought of beginning of Duypuytren contracture as my dad had this and it is an inherited condition.

My age is 66.