I woke up this morning with the left side of my hand in very bad pain. it seems to be the pinky knuckle and around that area. it is warm to the touch and swollen. I i could not bend it or use my pinky without pain. any movement i did with my hand causes discomfort to the area. have not had any issues with it until this morning when i woke up and it was extremely painful. what could it be?
In my opinion you have acute polyarthritis if I am your doctor I will order Autoantibody tests Good Luck