Tingling in fingers
In 2012 after being on the computer for quite a few weeks I had tingling or my pointer, ring, and middle finger, I went to the doctors because I had health anxiety and it was bothering me for I thought it was rabies. She told me it was carpal tunnel, braces did NOTHING at all; it still would be tingling and very annoying. Anyways typing makes it worse, bending my elbow for an extended amount of time makes it worse, gripping things for an extended amount of time makes it worse, sleeping with my elbows bent makes it worse. I have been dealing with this for the past few years and this year I went in to the doctor for my other hand tingling and she told me I was too young for carpel tunnel, she said it was a pinched nerve at the shoulder or elbow.
My tingling of my right hand fits carpel tunnel, but my left hand fits nothing, the only thing I see a little relief from is icing, magnesium infused lotion from the elbow down, I tried to keep my arm straight at night with a brace at the elbow, wrist, and a wrap over the brace also at the elbow so that my elbow is harder to bend at night. What do you think my left hand is affected by?
A big question. Does your mouse elbow have support? Does it rest on you the desk, or armrest, or a special device for the elbow? Do your hands at the keyboard point up or down?
If it affects three fingers then it is certainly to do with the median nerve; the impingement in your case I think is quite likely between the bellies of the pronator teres muscle.
Underlying it all there may also be a first rib fixation, or cervical rib that is affecting the nerve in the inter scalene triangle in the neck. Use the site search function at C-H to find out more about TOS.
Have you had a neck injury? Pain in the neck?
Only a careful and thorough examination is going to work this one out. CTS often goes to the other arm by the way because its origin is somewhere in the neck.
Look for an experienced and thorough chiropractor in your area.
An operation to your wrist is unlikely to fix this. The real problem lies somewhere more central; we call it a double crush syndrome; in the wrist, yes, but somewhere else too.
Good luck, let me know how you get on in a couple months. Look to the posture at your desk.