Thanks for your response. I forgot to mention I also react to all supplements it seems, well mainly the herb based ones like Lions mane, astragalus, reishi etc. Utterly bizarre really. You'd think it has to be some sort of nerve damage or histamine related (mast cell issues).
I came across this the other day and think it'll interest you. In theory it's a great idea, but you never know how good it'll be. Then again, its better than doing nothing or spending thousands on effectively chasing your tail.