Occasional fever and pain

Patient: I am from Bangladesh, here the temperature is 14 degree. compared to the overall weather of Bangladesh it is quite cold. my problem is that i am suffering from fever every afternoon for lat 5 days along with shoulder pain and extreme headache. sometimes little pain in stomach. i want to know if these are for the cold weather or there any other reason?

Symptoms: Occassional fever, headache, shoulder pain

Doctor: