you should try yohimbe
i had a cramping problem and it's basically stopped that completely
i suspect that this is to do with amylose forming from high blood sugar, and yohimbe increases amylase in the *blood* (not pancreatic or salivary) and that lets it mop up the amylose that is clogging up your nerves and organs and it gives you tremendous energy and yeah, like i said, stops cramps, dead... i have passed this new information on to my sister as i believe now, almost certain, that amylose is a factor in rheumatoid arthritis, which she has suffered all her adult life (25 years now)
i only developed the cramps and muscle weakness, and the first acute symptom was double vision and i now am convinced that all of these problems boil down to chronic long term high blood sugar, and not having the genetics to turn it into fat, basically
i hope that helps you, i am pretty sure it's literal amylose - a form of starch - clogging up everything, and yohimbe helps you push that back while you drop your carb intake and you will also be able to do more exercise