I would have to say that it sounds like a sinus infection. Usually, sinus infections come along with yellow, gray, mucous, facial pain, headache, toothache, pressure in nose, ears, 1 reason's I know this is cause I have been suffering with Chronic Sinusitis for 14 yrs. I am not a medical doctor, so some of it could be allergy related. It doesn't sound like it to me from what your describing. From what I have read sinusitis does not have clear mucous. Allergies have clear mucous. Hope, that helps. Have a good day! Brandi.