Thanks for asking the query,
Wisdom tooth extraction
is a complicated surgical process and often associated with post surgical complications like pain, swelling ,prolonged numbness
You dont worry about the symptoms as they will subside after sometimes.
Nausea and vomitting is due to the use of antibiotics and analgesic
prescribed to you.
I would suggest you to stop the medications and take antiematic drugs.
Follow the post operative instructions given by the Dentsist properly, take lukewarm saline and antiseptic mouthwash gargles twice daily.
If the symptoms persists or worsen, consult the Dentist
and get the checkup done.
Hope this helps out.