Do yourself a favor and see an orthopedist, preferably a hand specialist. A good one will have several Xrays taken of both hands, before he makes a diagnosis. You may, for example, be suffering from arthritis rather than carpal tunnel. Once you have a diagnosis you have confidence in, you can explore your options. I would insist on a referral to a physical therapist. You may get some relief from a custom split which you can wear while sleeping. Also, a PT may be willing to tell you (off the record) the track record for a particular procedure or a particular doc. Just remember to take everything you hear with a grain of salt.