Thanks for asking the query,
Wisdom tooth extraction is not a simple procedure , it is somewhat complicated and there are often post extraction effects like pain , swelling , difficulty in mouth opening , fever
There could be a chance of some broken root piece left in the socket to rule out this you can visit to a Dentist
I would suggest you to take an OPG x-ray.
Pain can also be because of ear infection, for neck pain you need to get a checkup done by a physician .
Take tab amoxiclav
625 mg twice , tab zerodol
also take multivitamin
tablets and antaacid like rabeprozole 20 mg all this for 5 days .
Hope this helps out.