I have bad sinus problems along with the GERD, and yes, I used to get them even when I was taking PPIs. I would break through at night, and this would get into my nasal passages and sinuses. However, it seems that my GERD is also worse when I am having problems with my sinuses. The doctor who did my Nissen Wrap years ago told me that there is a high white cell content to the nasal drainage, and this is very irritating to the stomach and esophagus. So, I think that the two problems feed into each other. The one thing that I have found helpful is to use nasal washes a couple of times a day when my sinuses are bothering me. This decreases the congestion, washes out any allergens, and keeps the area moistened.