Pollen is high in the spring you are right, I wouldn’t expect the “medical experts” at NBC to know that. It is possible however to have late summer/early fall allergies. That is actually when my allergies are the worst. It is the fault of the late blooming flowers and the grasses. I do wonder though why she isn’t on allergy medications. There are several non-drowsy over the counter varieties that work well.
Heart problems might lead to less-than-optimal treatment for low thyroid (the one problem Hillary admits to), and to less-than-optimal treatment for allergies.