How should I be evaluated for symptoms of dizziness and lightheadedness? I have had MRI of head, echo of heart and evaluation by ENT with nothing foun

How is your eating? With those tests out of the way, i would now want to know if you are eating and what you are eating, as well as whether you are drinking enough fluids. I would want to check your blood sugars, fasting as well as after a meal. Also what are you taking the lortab for and could that be causing these symptoms ?