15% of strokes, and many subsequent cardiovascular events happen within days or weeks.
Any sudden stroke-like symptom should therefore be treated as an emergency—even if it disappears.
## 1. Sudden Numbness
Sudden numbness of the face, arm, or leg can be an important warning sign, particularly when it affects only one side of the body.
It may feel like:
* Pins and needles
* Loss of sensation
* A strange heavy feeling
* Sudden numbness of one side of the face
The American Stroke Association includes sudden one-sided numbness among the classic signs of stroke
