What causes chills and nausea?

Under normal circumstances, the human body should feel comfortable and free of abnormal symptoms. However, when disease occurs, corresponding symptoms may manifest—such as generalized chills and nausea—which are considered abnormal and commonly experienced by many individuals. These symptoms may indicate underlying conditions such as physical exhaustion, common cold, or migraine-associated vertigo, and thus warrant attention. So, what causes generalized chills accompanied by nausea? Below, we address this question.

What Causes Generalized Chills and Nausea?

1. Physiological Factors

Excessive fatigue, stress, exposure to cold, or insufficient sleep can trigger nausea and generalized chills. Moreover, chronic overwork, frequent late-night activity, and poor rest may lead over time to anxiety, insomnia, impaired memory, and even clinical depression or schizophrenia. If such fatigue persists for six months or longer, low-grade fever and sore throat may develop.

2. Pathological Factors

Dizziness, headache, nausea, vomiting, and generalized weakness may suggest migraine-associated vertigo. Episodes vary in duration and may involve positional vertigo or intolerance to head movement. One or more classic migraine features—such as headache, photophobia, phonophobia, or aura—are often present. In some cases, vertigo is triggered by specific migraine precipitants, including hormonal fluctuations or sleep deprivation. Between episodes, neurological examination is typically unremarkable; however, during active episodes, nystagmus may be observed on physical examination.

3. Gastrointestinal (GI) Influenza

Gastrointestinal influenza is a subtype of the common cold, primarily caused by Coxsackievirus, often complicated by secondary bacterial infection. Medically termed “vomiting-type upper respiratory infection,” its hallmark symptoms include abdominal distension, abdominal pain, nausea, vomiting, and diarrhea—sometimes occurring multiple times per day—accompanied by profound fatigue. Severe cases may result in dehydration, electrolyte imbalances, and compromised immune function.

The above outlines potential causes of generalized chills and nausea. We hope this information is helpful to you.