Brief Answer:Carpal tunnel syndrome
I read your question carefully and I understand your concern.
Judging from your description and the distribution of the pain I would say that the most likely diagnosis is that of carpal tunnel syndrome. It results from compression of the median nerve
(which supplies sensation for the first 3 fingers) in the wrist as it traverses the carpal tunnel, a small tunnel where the median nerve and tendons pass. Contributing factors may be many such as prolonged compression and repeat use of the wrist, arthritis
, genetic predisposition etc.
Of course the diagnosis has to be confirmed, usually a routine test called nerve conduction study
(NCS) is enough to identify whether there is nerve suffering and the site of damage.
If confirmed management consists first in trying to remove predisposing factors if possible, rest, splinting of the wrist. If those do not work or the NCS shows the damage to be of an advanced stage, a simple surgical procedure may be done to relieve the pressure (really simple, will be back home on the same day).
I remain at your disposal for other questions.