Hi welcome to HCM.... You have chronic headache problem.... Yes stress and over work can lead tension headache .... You have to be examined along with blood pressure measurement ... And yes detail history also taken... I would like to know intensity of pain and associated complain like photophobia or intolerance to loud noise .... If this is present along with throbbing unilateral headache then it could be migraine ..... Sometime chronic constipation can lead headache ... Teeth infection , ear infection etc can lead reffred headache .... Take enough sleep and balanced diet .... If it is like migraine from above symptoms then ibuprofen given while severe headache ... Avoid stress as also if it is not cause it can aggravate headache .... Consult physician for your examination... Take care