Sarf, I'm a dentist and had all my wisdom teeth out under local. They will swell, particularly if they were impacted and by the sounds of it yours were as you have had stitches. It's an operation, the same as a medical one but unfortunately it's not easy to rest your mouth (there are at least 5 muscles involved in opening your jaw) as it is to say, rest your ankle. You would have been warned about post op pain, swelling and limited opening?
Not sure what mouse means about the stitches but dissolvable stitches are supposed to fall out, hence dissolvable, if they hadn't started to fall out, well then they wouldn't have been dissolvable. Don't quite understand what is wrong with dissolvable stitches dissolving!
OP, ignore the stitches, they do their thing long before they start to dissolve (primary healing takes place within 72 hours). Stick with paracetamol, ibuprofen (if you can take them) hot salty water-doesn't sting, I have been there- and not smoking (if you do) and leave the sockets alone as much as possible.
You won't miss the wisdom teeth but it is sore post op, like any other operation you may have/had.
If you are worried speak to your dentist, you will be fine.