That does sound like allegies. A change in the weather can bring it on. I have allergies real bad, mostly from grass, dust etc. . We keep on having these fires here and all that ash in the air kicked them up pretty bad. I take Allegra and spray Flonase into my nose, both are prescription meds. Over the counter, I like any Tylenol products but its hard to find non-drowsy.
I hope it gets better because allergies can make you feel miserable.