You are doing much better in my language than I would do in yours so do not worry. About the same time as I went menopausal, I was diagnosed as pre-diabetic. I cleaned up my diet, took out the sugars, and lost 30 lbs. This may account for some of my improvement of symptoms too. I know that years ago I read something about sugars being bad for myotonia. And for diabetic control, I know that sugar substitutes are also bad for your body in terms of the insulin and blood sugar reactions. I do not know if these are triggers but it might be good to eliminate them from the diet. Anyone else want to weigh in on this?
As long as I follow this I don't even notice that I have myotonia. That's after severe stiffness earlier in my life. The only thing now that sets it off is exposure to pesticides and herbicides or medications that affect electrolytes.
I did find that taking the supplement Acetyl-L-Carnitine allowed me to tolerate a little sugar occasionally. It is often prescribed for diabetics because it helps with insulin resistance and peripheral neuropathy. You can get it at any health food store.