Migraines are intense headaches. Sometimes they can be so severe that they interfere with work and life in general. Migraines are often caused by changes of serotonin levels in the body. Serotonin is a chemical that in high levels constricts blood vessels and in low levels causes them to swell. Some people describe a premonition or feeling hours before a migraine, signaling that one is coming. This feeling can take the form of tiredness, more energy, mood changes or cravings for food. There are different symptoms associated with migraines such as:

• Throbbing or dull aching pain on one side or both sides of your head
• Nausea or vomiting
• Changes in vision, including blurred vision or blind spots
• Increased sensitivity to light, noise or odors
• Feeling tired and/or confused
• Stopped-up nose
• Feeling cold or sweaty
• Stiff or tender neck
• Light-headedness
• Tender scalp

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