Oh yeah,,,,It's no fun either. I didn't really have all the typical allergy symptoms and thought I had a brain tumor. It was awful. I felt like that for almost two weeks before I finally sat in the emergency room and had a CT scan that determined I have a chronic sinus infection. I took antibiotics for 6 weeks and my doc has me on Singulair now. It's working and I haven't had another episode since, but every once in awhile I get a slight feeling of a stuffy head. Funny thing allergies. If I were you I would make sure there is no sinus infection, plugged ears and then start the rule out process. Hopefully you will feel better soon.