I had major problems a couple of years ago, I switched desk to one that was standing/much higher in the down position and swapped out my mechanical keyboard for

I had major problems a couple of years ago, I switched desk to one that was standing/much higher in the down position and swapped out my mechanical keyboard for an Ergo 4000, it took a couple of months but the problems all went away. I keep a tennis ball on my desk which is I squeeze when I'm reading or thinking and I've found that helps as well.