Y'know, I thought it was just me like that. Never in my life have I had any allergies. Since I moved down here, my sinuses act up incessantly, especially when the mold count is high. I even get a hellatious cough in early spring every year.
I say all the time that I'm allergic to Texas.
I agree with Feet, Bell. It sounds like an environmental allergy. Have you started using anything new in your garden or yard? Those would be the first places I'd look, considering the areas swelling up. I'd think about checking to see if anything has been added to the water in your area, too.