Thanks for asking the query,
are common side effects after extraction, you dont worry about the symptoms about the symptoms as they will subside after sometime.
It can also be due to the use of antibiotics and analgesics prescribed to you.
Take complete rest follow the post extraction instructions properly.
Take an antiemetic drug along with antacid
Take lukewarm saline gargles, antiseptic mouthrinses.
Maintain a good oral hygiene
Hope this helps out.