Welcome to Heathcare Magic Physician's Desk!
You are probably having an upper respiratory tract
infection which is mostly of viral origin.
I would suggest you to have lukewarm saline gargles and to have good oral hygiene
and headache you can take paracetamol/acetaminophen
500mg as required for comfort up to 6times a day.
The problem is expected to subside in coming 3-4 days.
Wish you a great health!