###Human: I get recurrent headache with low intensity. What could this be? ###Assistant: Hi. With the given information I think you are having a migraine. Please tell me what is the current frequency of headache per month? Additionally please answer the following questions.  Do you have nausea or vomiting like sensation with a headache? Is it a throbbing type or tension-type? Is it mostly one side? Is there irritation to light and sound? How long it goes? Do you have disturbed sleep? Any visual disturbances?