I live in PA and up until 2-3 years ago I didn't get seasonal allergies. Now I DIE during ragweed season and here and there depending on the fluctuation of pollen, humidity, what have you. It sucks. My eyes water, my face gets swollen, etc.
Your doctor can order a simple allergy test where they stick you a bazillion times in the arm to see what you react to. Does your Doctor have a Nurse Practitioner on call or an emergency number you can call? I ask because mine always does if you call into their office it connects to one of the 3 Dr's phones.