Hello, Thanks for posting this question in HCM Let me tell you that a given medical problem in a patient can be due to various causes. Headache is also due to various causes. Headache can be due to brain tumor, infection, headinjury, migraine, flu, medicines etc. Another thing which you need to know is that a single symptom can also be due to two or more reasons. Back to your question, i understand that you have headache, neck pain and dizziness. You also have sensitivity to light. Note that yopu have not told us regarding the presence or absence of certain symptoms like vomiting, visual symptoms, weakness of hands, legs, your gender. These information helps the treating doector to narrow-down the possibilty and he can offer batter care. What i will suggest you is that- get examined by a local neurologist who will assess your neurological status and hat will guide us to know if a brain and spine scan is required or not. A brain scan in the settings of head injury will rule out any major problem like bleed which may cause headache and other symptoms as you have told. I also a a doubt hat this could be the onset of migraine too. But migraine is a dianosis of exclusion and if it turns out so, you will certainly benefit with ant-migraine trteatment. So i strongly advise you to undergo neurological assessment and follow the local neurologist Best wishes