They did bloodwork, an arterial blood
gas test, and an EKG. All came back normal. I was diagnosed with acute hyperventilation syndrome, told it was probably nothing serious, and sent home. But the numbness didn't go away, and over a period of the next two weeks, it only became worse.
By this time, I was becoming extremely fed up, so I asked my aunt for help. She isn't a nutritionist, but is very well-versed in personal nutrition.