Though itīs not the root of the problem really glad you found something that helped temporarily and could act as a further clue to solving your own myasthenic mystery, wild_cat....
The only two dietary experiences that also helped me in my life were the following:
During constant chronic fatigue of M.E. some years ago,
whey protein would act like tensilon on my muscles, every single challenge portion would get me from floppy unresponsive ragdoll-like to alert, upright energy in muscles but effect was always
shortlived.
During a rather long hypoglycemic phase which often resulted in shaking, slurred speech, and so forth I was able to tame the rough blood sugar seas into the calmest lake imaginable with just the use of dietary modification. Some things I remember: Cut most sugar out/down….
protein and not carbs to hit empty stomach first thing in the morning. I also used coconut oil for a 12 month period. Though there is something that can detrimentally affect everyone in all products, this happened to work for me at that time. I can eat anything now but donīt gravitate towards sugar products anyway, everything tastes oversweetened these days.
Good luck on the 15th, (maybe I will visit you after my
own pulmonary appointment and theyīll end up keeping us in there together!!!)
Anacrusis