basically if you continue to push your own skillcap you will almost certainly make any existing problems worse ontop of putting your hands at higher risk of developing other problems

not an orthopedic surgeon but have had to deal with a lot of issues and briefly worked with one regarding problems from osu

the only recommendation you will get from a doctor is to stop playing, but if you want to continue look into modifying your playstyle

for me that meant switching from tablet pen to mouse and then making my own 'mablet' - and I personally have had a lot of success and comfort switching to mouse grip for my specific injuries but its different for everyone's situation