just curious.. i've heard that allergies can increase in pregnancy. i have two children and have not had an allergy problem for many many years. there is a possibility that i could be prego, but we're not exactly trying. w/in the past week my allergies have been horrible!! constant sneezing, running nose, sinus pressure... have also had nausea, headaches, very sleepy, and very dizzy spells... no fever.. just feel hot. i know some of these could very well be pregnancy symptoms, but i could only be up to 3 weeks along if i am pregnant. ??? i didn't have symptoms w/ my last two for many months into the pregnancy... any thoughts?