Is a popping sensation normal after porcelain crown and veneer placement?

About 2 weeks ago I got 7 of my top teeth placed with porcelain crowns and veneers. After brushing my teeth today I noticed a popping sensation almost like air bubbles were between my regular teeth and the crowns. I do grind my teeth at night when I sleep and I'm supposed to go back to the dentist next week to get a mouth guard. Since it's only been 2 weeks are the teeth still settling or do I need to move up my appointment?? I don't want to risk them coming loose!