Sorry I wasn't on AB yesterday - had a 70th birthday and a lads reunion to go to ..... feeling a little bit tender today.
If I remember correctly, my stitches were also meant to be dissolvable, but there were still some bits that the dentist needed to remove.
I'm fairly sure that I also encountered lumps and bumps in my gums in the vicinity of the implants, which eventually subsided.
If in any doubt, just point things out to your dentist .... he should take some x-rays to ensure that everything is going to plan. It's a while ago when my implant journey started (Feb 2017), but I'm sure my dentist took x rays a short time after, to ensure all was well.