If you are craving salt (the salsa and tortilla chips you mention), your body might be trying to tell you something.

Set yourself free for a couple days. Eat all the salty stuff you crave, whenever you crave it. Want fried spam for breakfast? Go for it!! Dill pickles at lunch? Oh, yeah!! Extra salsa and tortilla chips at night? Absolutely! Drink a robust glass of water with each salty extravaganza.

Feed the need!

After a couple days, see if it's had any effect. If it hasn't helped at all, well there's a good piece of info to give your doctor when you talk to her about it. If it does help, well there's a good piece of info to give your doctor!

There are a bazillion things that can cause muscle cramps. The longer I work in healthcare, the more convinced I am that our bodies usually send us out clues about the cause or solution we should be investigating.