I woke up with my finger bruised inside by my knuckle and hurts. I never smashed it, is this arthritis?

So I never smashed my finger or anything but today I woke up with my finger bruised inside, not on the outside but I feel it bruised inside and it really hurts so I don’t know if this could be beginning stages of arthritis but I do crack my fingers many many times a day

My finger feels warm, and again it just hurts, I’m not sure if this could be Arthritis or not

Update:

Here’s a picture of my finger