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Symptoms of Serious Illness

Immediate medical care may be needed if a headache, vomiting, fever, or a seizure occurs along with another serious illness. Symptoms of a serious illness include:

  • Severe neck stiffness or pain.
  • Confusion or extreme irritability.
  • Extreme sleepiness.
  • Persistent nausea or vomiting.
  • Severe sensitivity to light (photophobia).
  • Unsteadiness that prevents standing or walking (ataxia or vertigo).
  • New double vision, blurred vision, or blind spots.
  • Very rapid, difficult breathing.
  • Severe pain.
  • New and different skin rash or severe bruises.
  • New swelling, pain, redness, or warmth in one or more joints.
By Healthwise Staff
Primary Medical Reviewer William H. Blahd, Jr., MD, FACEP - Emergency Medicine
Specialist Medical Reviewer H. Michael O'Connor, MD - Emergency Medicine
Last Revised February 21, 2012

WebMD Medical Reference from Healthwise

Last Updated: February 21, 2012
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.