I've seen chiropractors for pinched nerves. Gave me short term relief, not much long term help. Acupuncture worked better for me.

Try what you like, find something that works, keep your mind open.

Being sedentary is a problem. It's good to take breaks, move around, do some things away from the computer often. Even if it's 10 minutes to walk around and stretch. And do some light exercise at a minimum. Even basic walking and stretching your arms/hands will help.