Havana Syndrome Survey

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Website: www.HavanaSyndrome.tech


Medical Signs and Symptoms to Watch For

Sudden neurological, sensory, or cognitive symptoms may need medical evaluation.

  • Sudden head pressure or headaches
  • Ear pain or fullness
  • Ear ringing (tinnitus)
  • Dizziness or vertigo
  • Hearing changes or sound sensitivity
  • Intrusive external sounds or voices
  • Voices that sound like the individual’s inner voice
  • Balance problems or unsteady walking
  • Nausea or motion sensitivity
  • Vision changes or blurred vision
  • Brain fog or confusion
  • Difficulty concentrating or paying attention
  • Memory problems or forgetting recent conversations
  • Sleep disturbances or unusual fatigue
  • Slowed thinking or delayed responses

If symptoms begin suddenly or interfere with daily life, seek medical attention.