Having random leg cramps and shoulder cramps, tingling , pain. other than magnesium and calcium what could cause? what should i get checked for?

Electrolyte: imbalance: sodium, potassium, chloride and bicarc as well as calcium and magnesium. Also get screened for ovreruse of these muscle groups.

Neuropathy: this sounds like a small fiber sensory neuropathy, or a degenerative process of the sensory fibers, or the fiberst that are responsible for sensation. causes included a viral etiology or an autoimmune disorder such as lupus. I would see a neurologist