Aretha had severe epilepsy, and surgeons removed portions of her hippocampus to control the severity of her seizures. it is quite likely that aretha will find that the surgery has also affected her ability to express emotions appropriately.
Based on the scenario above, as Aretha had severe epilepsy and had removed some portions of her hippocampus, it is likely that the surgery has affected her ability to express emotions and as well as controlling her urges to eat and drink.
