My wife went through a lot of work to find ergonomics to mitigate RSI. In the end: 1. Adjustable desk height. 2. tried several keboards before settling on the

My wife went through a lot of work to find ergonomics to mitigate RSI. In the end: 1. Adjustable desk height. 2. tried several keboards before settling on the best split. 3. tried several mice. all helped, but... symptoms were also confusingly intermingled with a pinched nerve. PT helps that. See a doctor, yes, and also keep your mind open to other/multiple confounding causes.