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Why do I have pain in the left side of my head only?

For around 3 days I have pain in my head, but it is only on the left side of my head. Seems to go away and come back and go away again throughout the day for no reason. What could this be?
I would recommend that you go to see your primary care doctor about this issue, especially if the pain is persistent or worsening. There are several different potential causes of your headache, and your doctor can perform a thorough physical examination and help you figure out what might be going on. The fact that the pain is mostly on one side of the head would be most consistent with a migraine. Migraine, classically, is characterized by a pulsating pain that is localized to one side of the head. Other symptoms that often go along with migraine include nausea, dizziness, sensitivity to light, and changes in the vision (such as wavy lines or flashing lights). The pain could, however, be from other causes as well. For example, if you have chronic sinus congestion that is mostly affected just the sinuses on the left side of your head, that could definitely cause an aching pain that was mostly localized on the left. Your doctor can help you figure out what is going on. Based on the likely cause of the headache (migraine, sinus congestion, or something else) they can also make recommendations about which medications would be best to treat the pain. Good luck!
This answer is for general informational purposes only and is not a substitute for professional medical advice.
If you think you may have a medical emergency, call your doctor or (in the United States) 911 immediately. Always seek the advice of your doctor before starting or changing treatment. Medical professionals who provide responses to health-related questions are intended third party beneficiaries with certain rights under ZocDoc’s Terms of Service.
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