Hi welcome to health care magic... Here your physical examination and detail history should be taken... Your headache unilateral and along with nausea... If it is throbbing in nature and if intolerance to loud noise or bright light present migraine most likely possibility. For which brufen and if needed rizatriptan like drug given... If congestive symptom present than viral flu can be cause... Chronic work on computer like precipitating factor avoided... Irregular meal, lack of sleep can be causative. Ear examination also done as it might be referred headache.. Meanwhile you consult physician for examination take paracetamol for headache Take care Advise : Physician consultation for examination and further work up