Ebbie, my best friend is a hand surgeon, and was recently telling me about the diagnostic methods to diagnose trigger finger. First, if you open your hand and look at the palm, palpate the area proximal (toward your palm) to the joint. this should be on your flexer side (palm side) if the tenderness is there and feels almost like a pea a small knot in your finger it is most likely trigger finger.

This is probably one of the best diagnoses you can have in that it is very correctable, but it will require a small surgery to release the tendon that is putting a bind on your tendon. I had a similar surgery on my thumb a few years ago and it was 100 percent successful with very little time to heal. Good luck If you want any additional info pm me