Bit hard and something went in between my two teeth

I ate popcorn three days ago and I was eating and all of the sudden I felt like something was stuck in between my premolar and molar on the upper right. It was a feeling if a lot of pressure like something stuck in between and even biting down the pressure didn’t go away. It didn’t hurt or anything just immense pressure like something is lodged. I tried every corner of the tooth with a toothpick to get it out but nothing. Then alas I tried flossing in between the teeth premolar and molar and I felt better. The pressure was gone. But nothing came out. At least I think nothing came out. Thing is now it feels mildly irritated but no pain when biting down. It doesn’t hurt when I'm eating but when I'm done eating it feels sore and im "aware" of it. I feel the tooth and it aches only a little bit when not using it but not throbbing. It's a nagging feeling that's always there. it’s “sore” if that makes sense. When I push on it with my tongue it just feels sore. It doesn’t hurt when I eat on it. When I clench my jaw it feels sore on the tooth and gum but not painful. It's also not sensitive to hot or cold. I have checked every day but nothing. I also did the cotton ball test and I don't get pain when I bite. I do get spontaneous aches on that tooth but that could be because im eating on it. I just feel like that tooth moved when I ate the popcorn and it went between the tooth and another and now I am worried. Like it shifted when I bit down on the popcorn and now I’m worried it’s fractured. If it was a fracture wouldn’t it be throbbing right now? if it was a fracture wouldn’t I feel it right away? Not just the pressure? I don’t know what to do. What are the signs of a fracture? do the symptoms develop right away after the incident? I'm really worried. What could it be? Thank you for taking the time to read this.