Thanks for posting your querry.
After reading your symptoms, i feel there can be 2 things which could have caused this condition:
with throat infection
leading to muscle and joint pain(general malaise
-allergic in nature: sometimes an allergen can cause the same symptoms which get eliminated once the allergen is removed.
In your case, it feels more like the throat infection which needs to be treated. Ideally you should be given a mild antibiotic along with analgesic
You also need to do warm saline gargles (3-4 times/day) to relieve the cough
sensation from your throat. Losenges may also help with the same.
The joint pain is a side effect of common cold, which goes once the infection reduces with time/medicines.
Hope i have answered your querry.