Metallic taste?

Does anybody ever get a metallic taste in their mouth when taking their insulin or when their sugars are crazy? 

just wanting to know what could be behind it and if its not that serious.

ya i get that a lot when im getting insilun

When my blood sugar gets really low, my mouth and tongue will go kinda numb and it makes what I eat kinda metallic tasting :P  

when I'm low everything tastes 10x better haha and I get that taste when I'm high! grossness....