What to do:
If you notice a change in the pattern or severity of your headaches, especially if they are accompanied by dizziness, vision problems, or numbness, it is important to seek medical attention.

2. Sudden numbness or weakness in the extremities
   A hallmark of a stroke is weakness or numbness, especially on one side of the body. However, these symptoms can appear as a fleeting, subtle feeling in the days or weeks leading up to a stroke. You may feel numbness in an arm, leg, or side of the face, which can come and go.

Why it happens:
A stroke often affects the brain’s ability to send signals to different parts of the body, causing weakness or numbness, especially on one side.

What to do:
If you notice that one side of your body feels unusually weak or numb, even if it is temporary, see a doctor right away.

3. Vision problems
   Sudden vision problems, such as blurred vision, double vision or partial loss of vision, can occur in the weeks leading up to a stroke. These symptoms may come and go and may affect one or both eyes.

Why it happens:
The optic nerves, which carry visual information from the eyes to the brain, can be affected by reduced blood flow or clots in the brain. This can lead to visual disturbances that indicate an impending stroke.

What to do:
If you experience sudden changes in your vision, especially without an obvious cause such as eye strain or tiredness, this can be a serious warning sign of a stroke. Seek immediate medical advice.

4. Dizziness or loss of balance
   A person at risk of stroke may experience periods of dizziness, difficulty walking or sudden clumsiness. These symptoms often occur when there is a lack of blood flow to areas of the brain that control balance and coordination.