[F21] Swollen and red finger joints

Hello everyone,

A little while ago my finger joints started swelling and turning red. It started with only my middle finger and pinky, and now my ring finger it swollen too. It doesn't hurt, just a little stiff and I still have full range of motions in all my fingers.

We do have a family history of arthritis, but since I'm still young I wondered if it could be something else.

https://postimg.cc/gallery/JkJfJ3D

Can anyone give me advice? Thanks.