Feeling very dizzy all day today and emotional?

my head feels light and i am stumbling and i feel like im going to fall. the room feels slightly spinny. I am also a bit emotional. i spilled some chicken wings on the floor and cried about it for a good 10 minutes :/ i have no clue as to whats happening, but the doctors have told me that i am on the brink of diabetes. could that be it?