I have been being treated for a sinus infection for about a little over a week now,10 days,with an antibiotic. On thursday my throat was a little sore, even to the touch on the outside.The next day I woke up with a knot close to my adams apple on the right side. If you push on it ,it is sore and feels like it pushes on to my throat. It is sore like a sore throat soar.What could this be?I have a little trouble swallowing also and a soar throat at times.