The problem you are facing can be the common cold
. This can lead to body ache
and headache along with cough
and cold. Usually this is a type of viral infection normally require symptomatic treatment for the symptoms and relieves within 10 days. But the intensity of infection can vary and this can persists for long also.
I would suggest you that apart from taking medication for cough only, you also start taking some pain killers for your headache.
Apart from this drug treatment I would suggest you to have steam inhalation two time dialy as this will help in relieving the cough and easy expectoration and also gives you good feeling.
Thanks and take care.