Sometimes i wake up with super itchy wrists and near my ankles. could this be caused by too much sugar?

Wrist/Ankle Jewelry?: Maybe you're allergic to any number of food additives. Like, azodicarbonamide or Disodium ethylenediaminetetraacetate or Ethylenediamine tetraacetic acid. But I suggest you first consider scabies. Maybe they love sugar, I don't know, but I do know the wrists are a common resting place for them; the ankles less common but who cares...get that checked out and if not that, then maybe an allergy

Probably not: but genital itch is seen in uncontrolled diabetes. Dry skin probably