* Blurred vision
* Double vision
* Partial loss of vision
* Sudden trouble seeing clearly
Some people describe it as a shadow, a dark area, or sudden visual distortion. Any unexplained and sudden change in vision should be evaluated urgently.
## 6. Trouble Walking, Dizziness, or Loss of Balance
A stroke can interfere with coordination and balance.
Warning signs may include:
* Sudden dizziness
* Trouble walking
* Loss of balance
* Lack of coordination
* Feeling unusually unsteady
These symptoms may be especially important if they happen together with speech problems, vision changes, or weakness on one side.
## 7. A Sudden Severe Headache
