Hi, Thanks for using the HCM. I am happy to address your questions, migraine is a severe, painful headache that is often preceded or accompanied by sensory warning signs such as flashes of light, blind spots, tingling in the arms and legs, nausea, vomiting, and increased sensitivity to light and sound. The excruciating pain that migraines bring can last for hours or even days. Migraine headaches result from a combination of blood vessel enlargement and the release of chemicals from nerve fibers that coil around these blood vessels. This causes a release of chemicals that cause inflammation, pain, and further enlargement of the artery. A migraine headache causes the nervous system to respond with feelings of nausea, and vomiting. A brain tumor takes up space within the skull and can interfere with normal brain activity. It can increase pressure in the brain, shift the brain or push it against the skull, and/or invade and damage nerves and healthy brain tissue. The location of a brain tumor influences the type of symptoms that occur. Brain tumors may have a variety of symptoms ranging from headache to stroke. Different parts of the brain control different functions, so symptoms will vary depending on the tumor s location. Possible symptoms of a brain tumor include seizure, gradual loss of movement or sensation in an arm or leg, unsteadiness or imbalance, especially if it is associated with headache, loss of vision in one or both eyes, double vision, especially if it is associated with headache, hearing loss with or without dizziness, speech difficulty of gradual onset. Other symptoms may also include nausea or vomiting that is most severe in the morning, confusion and disorientation, and memory loss. The best way to determine if you have a brain tumor is to have your doctor perform a type of brain scan called an MRI or a CT scan. Hope I have answered your query. If you have any further questions I will be happy to help. Thanks