A stroke may suddenly affect communication abilities.

Possible symptoms include:

• Slurred speech
• Confusion
• Difficulty understanding words
• Trouble forming sentences

A person may sound disoriented or unable to speak clearly.

3. Sudden Severe Headache

A sudden intense headache may sometimes signal a stroke, especially a hemorrhagic stroke involving bleeding in the brain.

Doctors often describe concern when the headache:

• Appears suddenly
• Feels unusually severe
• Occurs with dizziness or confusion

Not every severe headache indicates stroke, but sudden unexplained symptoms deserve urgent attention.

4. Vision Problems

A stroke may affect the parts of the brain controlling vision.

Possible symptoms include:

• Blurred vision
• Double vision
• Sudden loss of vision
• Difficulty seeing in one or both eyes

Vision changes may appear abruptly.

5. Dizziness or Loss of Balance

Sudden dizziness may sometimes be linked to stroke, particularly when combined with other symptoms.

People may experience:

• Trouble walking
• Poor coordination
• Loss of balance
• Sudden falls

This may be mistaken for fatigue or inner ear problems.

6. Confusion or Sudden Mental Changes

A stroke may affect thinking and awareness.

Possible signs include: