We have two new kittens for the past 2 weeks. I'm concerned I may be allergic to them. I have not sneezing or coughing or rash. For a week now, I have sinus pain in my eye corners near my eyebrows. Over the counter meds drain my sinuses but only Bayer will take the 'headache' away. It goes away when I go outside or at night where the kittens are not. Normally I would think it was sinuses, but since it goes away outside, I'm wondering if it's the cats? Any advice?