Thanks for writing your query.
After reading your post, it seems that your symptoms are due to upper respirtory tract infection.
You should get yourself examined by an ENT specialist
Following investigations will be helpful in planning your treatment :-
1. Throat swab culture.
2. Complete Blood Count
You can take antihistaminic like Fenofexadine
120 mg once a day along with decongestants like phenylepherine.
Pain in the body can be due to fever, and can be relieved by taking paracetamol
one tablet for pain.
If the problem persists, get yourself examined by your doctor.
I hope this is helpful to you.