Make sure it is defo carpel tunnel syndrome, as there is a lot of misdiagnosis about, as you say affects the flexar reticulum, and the MEDIAN nerve.
My g'f was aid by three dr's to have this but a specialist in Harley Street saw her and said no it's not.
She then got treatment for cubitta fossa syndrome, to some very good effect.
Hers is not rsi related but from a stroke when she was 3/4 years old, so she has partial paralysis on her left side.
I suffer from nerve problems but not caused by rsi, I take 400mg tramadol a day, my thora columba fascia was stretched massively so I get chronic pins needles numbness 24 hours a day.
tabetha