What are the symptoms after wisdom teeth extraction?

Depends: What you feel after the removal of wisdom teeth can be very variable, from very minimal discomfort, to fairly severe (but short-lasting) pain. It depends on how difficult the extraction was and also the skill of the dentist who did the extraction.

Varies, but.....: Discomfort, pain, bleeding, swelling, numbness, etc. Are typical post extraction symptoms. This varies depending upon the difficulty of the extraction, your medical conditions\health, pain threshold, skill of the surgeon, and how well you follow instructions, etc.

A variety from 3rds: Many symptoms occur after wisdom teeth are removed. Swelling, difficulty swallowing, some pain, difficulty opening are just some. You will heal in two weeks usually. If they were infected then longer. Your dds/dmd is trained to manage the annoying complications, and are happy to do so. But if you have trouble breathing. Or you neck is swelling closed go to the er without delay.