Swollen Small Finger

Hi I have a swollen small finger (whole finger) which i have had for almost 2 weeks I can only bend it half way once i have been up for awhile I can touch it but it feels like the joins I do have arthritis I was wondering if anyone has has this and do i need to see the Dr I was at my allotment 2 days before but there is no insect bite or any infection and i have not knocked it It just appeared any help i would appreciate Thanks

Thanks for the advice i have rung 111 been through the questions and they said i can wait and see the Dr on monday but if it gets worse or feels numb the to ring back so they can send someone out So will wait till i get in touch with my Dr