My 31 year old daughter went to the ER two days ago for a migraine. They gave her a cocktail, and she felt better. Today, she feels light-headed, achy, has no appetite, has chills and lethargic. She describes her feeling like when your blood sugar is low because you haven t eaten. She has tried to eat, but feels nauseous when she does. Could this be related to her previous migraine? Should she return to the ER or go to urgent care?