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What causes anxiety and fever? 11 possible conditions

See a list of possible causes in order from the most common to the least.


Caffeine Overdose

The recommended amount of caffeine is usually 400 mg per day for healthy adults. Caffeine overdose may occur if you ingest more than this amount.

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Post Traumatic Stress Disorder (PTSD)

Post-traumatic stress disorder (PTSD) is an anxiety disorder that occurs after experiencing or witnessing a traumatic event. PTSD can cause disruptive symptoms of panic, increased arousal, and mental/emotional problems.

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Rabies is caused by a virus that affects the central nervous system. It can be transmitted by bites and scratches from an infected animal, often a dog.

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Alcohol Withdrawal Delirium

This condition is considered a medical emergency. Urgent care may be required.

Alcohol withdrawal delirium (AWD) is the most serious form of alcohol withdrawal. It causes sudden and severe problems in your brain and nervous system. Approximately five percent of hospital patients being treated fo...

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Pericarditis is the inflammation of the sac that surrounds your heart. The sac is a double-layered membrane called the pericardium. The pericardium protects your heart and helps it function properly.Pericarditis can b...

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Acute Pancreatitis

Acute pancreatitis is an inflammation in the pancreas, which causes pain and swelling in the upper left side of the abdomen, nausea, and burping.

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Alcohol Withdrawal Syndrome

This condition is considered a medical emergency. Urgent care may be required.

Alcohol withdrawal syndrome (AWS) is the name for the symptoms that occur when a heavy drinker suddenly stops or significantly reduces their alcohol intake. With AWS, you may feel mild anxiety and fatigue. You may als...

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This condition is considered a medical emergency. Urgent care may be required.

Meningococcemia is a bacterial blood infection caused by the same type of bacteria that causes some types of meningitis. Advanced symptoms of the infection include blood clots and bleeding under the skin.

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All About Autonomic Dysrelexia (or Hyperreflexia)

Autonomic dysreflexia (AD) is a condition in which your involuntary nervous system overreacts to stimuli. It's also known as autonomic hyperreflexia.

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Transfusion Reactions

A transfusion reaction is a rare condition that occurs when a person receives a transfusion with blood that is not matched to their blood type. This may cause symptoms such as back pain, fever, fainting, or dizziness.

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Alcoholic Liver Disease

Damage to the liver from excessive drinking can lead to ALD. Years of alcohol abuse cause the liver to become inflamed and swollen. This damage can also cause scarring known as cirrhosis. Cirrhosis is the final stage o...

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This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.