I never found hash or weed helped my game
I completely agree. Maybe a few puffs right from the start to relax the body, but continued smoking will diminish your capacity to play well. I have had many seasons with 60+ rounds. The last few years were terrible for me for golf, and I think I just gave up. It cost so much so not being able to play well or finish a whole round was very discouraging. I finally realized that the MS was not what was holding me back, it was me holding me back, always making excuses.
It became to easy to use MS as an excuse to not do things, I became very out of shape, lethargic. I now find after a month of pushing back against chronic fatigue that I feel much stronger, in better physical shape and that has resulted in a lower pain level. I managed to play the last round of golf with only 4 joints, most near the end for muscle clenching issues. The hash seems to be quite effective at eliminating that issue mostly.
Is your back issue treatable with chiro? That has completely changed my wife's life and she can function quite well now with limited pain most days. Her back and tailbone as still deteriorating, but much more slowly than before. I think she would like to start golfing again but she is super afraid it will mess up her back again. She cannot handle regular chiro so they do a technique called
tonal, all about pressure. No snapping or hard movements.