I've been experiencing the same issue this month. I only experience it with my morning stiffness, but it can last upwards of 2-5 hours every day. Mine has only been my right hand, mostly just my ring finger, other times it is my middle, ring, and pinky fingers. My rheumatologist said to go for an ortho consult. 🤦♀️ I've already had my right knee replaced, and I'm only 44. I also have OA and RA. I recently started Hadlima (Humira). It made the trigger finger symptom go away for 3 mornings after that first injection. I'm hoping the more I have the longer it'll stay away! Heat will sometimes loosen the rigidity sooner, but not always.
I hope others share what they have experienced.