about 6 months ago i started to experience pain in my right hand around the middle knuckle- but more the area between the pointer and middle finger from the base of the finger to the middle of the top of my hand. its often swollen and i noticed a bruise on the top of my hand in that area today. i had an xray when the pain started and they saw nothing. it does not seem to be improving although definitely gets irritated upon use, unfortunately it being my right hand there is not much i can do to limit the use. i experience weakness when gripping lifting turning with the hand and there is sharp pain in between the two knuckles that stretches into the hand. i dont know if it could be tendinitis or maybe early signs of carpel tunnel. i do have some other joint issues but nothing ever like this and no pain anywhere else although the joints are worn down. what could this be?