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Flu symptom checker: free AI doctor

Updated Oct 3, 20265 min readAnswer
On this pageShort answer Common symptoms of flu Signs you should get care now How to check your symptoms with a free AI doctor Common questions from students Common questions Related questions Sources
Short answer

Common signs of the flu are listed below. Text Pymander, a free AI doctor, to check your own symptoms. Antiviral medicine works best within 2 days of symptoms starting, so check in early.

Pymander is a medical AI system, not a licensed doctor, and a symptom list cannot diagnose you.

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Common symptoms of flu

  • Sudden fever and chills
  • Body aches
  • Cough and sore throat
  • Headache and tiredness
  • Sometimes vomiting or diarrhea (more common in children)

Signs you should get care now

  • Trouble breathing or chest pain
  • Confusion
  • Fever that returns after improving
  • Not able to keep fluids down

Trouble breathing, chest pain, confusion, a stiff neck with fever, or being unable to keep fluids down are reasons to go to urgent care or the ER, or call 911.

How to check your symptoms with a free AI doctor

  • Text Pymander from your phone
  • Describe what you feel and how long it has lasted
  • Answer a few questions
  • Get a care note to bring to your clinician

Common questions from students

What are the symptoms of the flu? Common symptoms are: sudden fever and chills; body aches; cough and sore throat; headache and tiredness; sometimes vomiting or diarrhea (more common in children). Not everyone has all of them.

Is there a free flu symptom checker? Yes. Pymander is a free AI doctor you can text. It asks a few questions and tells you what to do next. It is not a licensed doctor.

When should I see a doctor for flu? See a clinician if symptoms are severe, last longer than expected, or you have any red flag listed above. Call 911 in an emergency.

Can a symptom checker diagnose me? No. Only a clinician who examines you and runs tests can diagnose. A symptom checker helps you decide what to do next.

Common questions

Flu symptom checker: free AI doctor

Common signs of the flu are listed below. Text Pymander, a free AI doctor, to check your own symptoms. Antiviral medicine works best within 2 days of symptoms starting, so check in early. Pymander is a medical AI system, not a licensed doctor, and a symptom list cannot diagnose you.

What are the symptoms of the flu?

Common symptoms are: sudden fever and chills; body aches; cough and sore throat; headache and tiredness; sometimes vomiting or diarrhea (more common in children). Not everyone has all of them.

Is there a free flu symptom checker?

Yes. Pymander is a free AI doctor you can text. It asks a few questions and tells you what to do next. It is not a licensed doctor.

When should I see a doctor for flu?

See a clinician if symptoms are severe, last longer than expected, or you have any red flag listed above. Call 911 in an emergency.

Can a symptom checker diagnose me?

No. Only a clinician who examines you and runs tests can diagnose. A symptom checker helps you decide what to do next.

About this page. Written and maintained by the Pymander Health team. Last updated October 3, 2026.

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