Body feeling off and hot. sudden sweaty palms and feet. sudden light headed and feeling about to pass out. nausea. ?

Take care: Lie down if you are feeling light headed. Hydrate very well. Are you hypoglycemic? If yes - please eat something. If this doesn't resolve have someone take you for medical assessment.

You could be: presyncopal which is the syndrome that occurs right before you actually pass out (syncope). The symptoms you described speak of an adrenaline/ epipherine rush that occurs with acute hypotension/ body reaction to low blood pressure. Check your blood sugar to make sure it did not drop too low, also a potential cause for syncope. Heart rhythm problems and adrenal problems can also cause these.