Welcome to the message board! Congratulations on being smoke free since April 1!!! Way To Go!
I don't know what part of the country you live in, but this has been one of the worse years for pollen in the south that I can remember. Thank goodness the trees have just about stopped! I was living on antihistimines for a while there. My hubby even got a lung infection from it! (He's never smoked! So that didn't have anything to do with it.)
If it gets to bothersome to you, you might want to see your doctor. You may have a sinus infection.
Ya know, sometimes after we quit smoking, we tend to blame everything that goes wrong with us on the fact that we don't smoke any more. Sometimes that may be true, especially with the thyroid. But chances are you would have gotten your cold even if you were still smoking.
Please come back and post some more and inspire others here.
You must be a very strong person with lots of determination to have quit cold turkey. You are to be commended.
Good Luck to you!!