I don't know what she's getting. She may have complained about a headache but it was mostly just being lightheaded. And saying her brain felt like it was "shivering". IDK.  I think it's blood pressure changes or sinus related. I have to take allergy meds daily to keep my sinuses in check but if they get bad and can give you a headache and that whooshing type of feeling from time to time. Her doctor has instructed her to use something like claritin and flonase daily but she won't do it. She says she'd rather not ingest any thing more than she has to and would rather find her medicines in foods she eats.  I just shrug and say ok, suit yourself. I mean I agree it's best to get your vitamins and minerals from food (body absorbs it better than way) but I don't know of any holistic type of approach for sinus allergies.