If you or someone you're with may be having a stroke, pay particular attention to the time the symptoms began. Some treatment options are most effective when given soon after a stroke begins. Signs and symptoms of stroke include:  Trouble speaking and understanding what others are saying. You may experience confusion, slur words or have difficulty understanding speech. Paralysis or numbness of the face, arm or leg. You may develop sudden numbness, weakness or paralysis in the face, arm or leg. This often affects just one side of the body. Try to raise both your arms over your head at the same time. If one arm begins to fall, you may be having a stroke. Also, one side of your mouth may droop when you try to smile. Problems seeing in one or both eyes. You may suddenly have blurred or blackened vision in one or both eyes, or you may see double. Headache. A sudden, severe headache, which may be accompanied by vomiting, dizziness or altered consciousness, may indicate that you're having a stroke. Trouble walking. You may stumble or lose your balance. You may also have sudden dizziness or a loss of coordination. 
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