is it normal???

i’m officially one week post op and everything is healing fine but one of my extraction holes feels weird…. the bottom right (partially impacted and was partially erupted when they took it out) has left a hole much larger than the other three that looks deep and black inside. yesterday the stitches fell out while irrigating and it feels like there is a weird sort of pressure in the area. not pain, not achy, i’m just very “aware” of that hole more than the other 3… the nurse at the surgeons office said it’s normal for one hole to be quite large and that it will fill in over time. i’m down to 2 ibuprofen every 6 hours with no pain so i don’t think it’s dry socket it just feels SO weird and i’m SO AWARE OF IT. has anyone else had this????