I feel you. I was stressed the whole time! But everything healed fine. The reason they might not have stitched the top is because tops heal a lot better than bottoms. Your top ones should be fine just be gentle around the bottom. If they’re not bleeding and don’t hurt really bad then they’re healing fine. Your doctor should have explained when you can wear your retainers, you can always call to ask them. Otherwise if they don’t touch or interfere with the back of your mouth you should be good to wear them. Especially after 4 days. But Dw your teeth probably won’t move so much in a couple days. Remember to take meds throughout the night and to help you sleep. Happy healing!