Hi Fassa, it is a tricky situation using any support because the support after a while takes away the job of the muscles and it can lead to more weakness.
Depending on the type of support you use, this needs compression to stay in place, again bit an ideal situation to compress the wrists when not necessary.
It may be your life style and job that are the problems and the bass only shows it up, so maybe look there. Whatever is causing this problem needs to be addressed (if i has not already) by medical/sports profesionals to get to the cause rather than just relive it.
On a point of interest why are you not playing left handed if you are left handed? Did you pick up the guitar and "feel" it was better or was it a consious decision to play right handed regardless?
Now it is not un-known for people who go against their own nature so to speak, to have underlying problems, so i just wonder about why your choice was so?
