I've been researching because my 14 year old daughter just doesn't seem right. Lately she's been very thirsty, goes to the bathroom pretty often, sweats more than usual, is very irritable, is tired most of the time, is sometimes dizzy, her arms and leg are sometimes "tingly", sometimes has a kind of numb tongue and says her vision is sometimes "messed up". She has always been able to focus her vision, but she says it's become harder and may need to use her glasses more. There seems to be many things out of whack, and I don't know if this is something to be concerned about. What does everyone else think?