<s>[INST] Hi , I have cervical rib. A few years back My left hand fingers were numb but after some exercises it was Ok. Now I have occasional pinky finger tremble ( two or three times a day for about a minute or less) but no numbness or pain. Is it due to again Cervical rib or PD ( Parkinson disease) I am 61 healthy without any Blood Pressure , Or Diabetes problem and absolutely no history of PD in family. I am very active , nice sleep at night , no sleepy sensation in the morning , no urinary inconsistency etc. [/INST] Hi,Actually it may be a case of Trigger finger, ulnar nerve pathology, ganglion, cyst, also this happens with overuse I suggest MRI for proper evaluation. I don't think it is related to your old injury due to absence of numbness and pain . Please click THANK YOU and consider a 5 star rating with some positive feedback if the information was helpful. Hope the above information helps you. Any further clarifications feel free to ask.Regards,Dr. Ahmed Aly Hassan </s>