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Nausea: Symptoms Causes & Treatment | Headache and Nausea
Nausea: Symptoms Causes & Treatment | Headache and Nausea

Nausea

Nausea: Symptoms, Causes & Treatment

Nausea is a distressing symptom characterised by an uneasy sensation in the stomach, often preceding vomiting. It can result from various factors, such as infections, motion sickness, pregnancy, or medical treatments like chemotherapy. The body's natural response to toxins or discomfort triggers a complex interplay of signals between the brain and digestive system, leading to a strong sense of unease.

Accompanied by increased salivation, sweating, and a heightened sensitivity to odours, nausea serves as a protective mechanism, urging individuals to mitigate potential harm. While usually temporary, persistent or severe nausea may require medical attention to identify and address underlying causes.

Both adults and children can experience nausea. Patients who are undergoing cancer treatments, such as radiation therapy or chemotherapy pose a higher risk of nausea. Pregnant women in their first trimester also experience nausea usually known as “morning sickness.” Research says that 70% to 80% of pregnant people experience nausea, while 25% to 55% experience vomiting.

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What are the Symptoms of Nausea?

Some of the nausea symptoms affecting individuals include:

Symptoms of Nausea

  • Sweating

  • Lightheadedness

  • Vomiting

  • Abdominal Discomfort

  • Pale Skin

  • Loss of Appetite

  • Vertigo

  • Fatigue

  • Dry Mouth

  • Cold Sweats

Consult a gastroenterology hospital if you are experiencing any of the above nausea symptoms. 

What are the Causes of Nausea?

Any change in the Immune system and central nervous system functioning can trigger dizziness and nausea. Many different things can cause these changes. Some common causes of nausea include:

  1. Infections: Nausea from viral or bacterial GI infections triggers an immune response, often with diarrhoea or vomiting to expel pathogens.

  2. Motion Sickness: Conflicting sensory signals cause nausea in cars, planes, or boats due to the brain's misinterpretation of motion.

  3. Pregnancy: Hormonal changes in early pregnancy, like elevated HCG levels, affect the digestive system, leading to temporary nausea.

  4. Chemotherapy: Drugs irritate the stomach lining, triggering the brain's vomiting centre, and causing nausea in cancer patients. Antiemetics help manage chemotherapy-induced nausea.

  5. Migraines: Sensitivity to light and sound, accompanied by severe headache and nausea; changes in brain activity and blood flow may contribute.

How is Nausea Diagnosed?

Nausea can be diagnosed using the following methods 

  • Clinical Assessment: Doctors will conduct a thorough medical history and physical examination to identify potential causes of nausea

  • Laboratory Tests: Blood and urine tests help doctors rule out infections, organ dysfunction, or metabolic imbalances that may contribute to nausea offering valuable diagnostic insights.

  • Imaging Studies: Procedures such as abdominal ultrasound, CT scans, or MRIs can show structural abnormalities in the digestive system, aiding in the diagnosis of conditions like gallstones, tumours, or inflammation that is causing nausea.

  • Endoscopy: A flexible tube with a camera is inserted through the mouth or nose to examine the oesophagus, stomach, and upper intestine. This enables direct visualization of potential ailments like ulcers, inflammation, or tumours contributing to nausea.

  • Electrocardiogram (ECG): In cases where cardiovascular issues are suspected, an ECG measures the heart's electrical activity, helping identify conditions like arrhythmias or cardiac ischemia, which may manifest with symptoms like nausea.

What are the Treatments Available?

  1. Antiemetic Medications: These medications target the brain's vomiting centre, blocking signals that cause migraines and nausea and providing relief from nausea symptoms.

  2. Fluid Replacement: Rehydration with clear fluids, electrolyte solutions, or intravenous fluids helps alleviate nausea associated with dehydration, restoring electrolyte balance and improving overall health.

  3. Dietary Adjustments: Consuming bland, easily digestible foods like crackers, toast, or broth can help settle the stomach and provide nausea relief. Avoiding spicy, greasy, or heavy meals may prevent exacerbation of symptoms.

  4. Acupressure or Acupuncture: Applying pressure to specific points on the body or undergoing acupuncture sessions may help alleviate nausea by promoting relaxation and balancing energy flow, according to some alternative medicine practices.

  5. Behavioural Therapies: Techniques such as deep breathing, guided imagery, or progressive muscle relaxation can help manage nausea by reducing stress and anxiety, which can exacerbate symptoms. These therapies aim to promote relaxation and distract from discomfort, aiding in symptom relief.

Consult a gastroenterologist if you need nausea relief. 

What are the Home Remedies?

Some of the home remedies you can try for nausea relief are,

  • Ginger: Chewing on ginger root, drinking ginger tea, or taking ginger supplements can help calm the stomach and alleviate nausea naturally.

  • Peppermint: Peppermint tea or inhaling peppermint oil may soothe the digestive system and relieve nausea symptoms effectively.

  • Acupressure: Applying pressure to the P6 acupressure point on the wrist can reduce nausea and vomiting sensations.

  • Lemon or Lime: Sucking on lemon or lime slices or drinking lemon water can help settle the stomach and alleviate nausea.

  • Deep Breathing: Practicing deep breathing exercises can promote relaxation and alleviate nausea by calming the nervous system.

When to see a Doctor?

If headache and nausea persist for more than a few days, worsen, or are accompanied by severe abdominal pain, vomiting blood, fainting, dehydration, or signs of a severe infection, seek medical attention promptly to identify and address the underlying cause and prevent complications.

Nausea after eating, characterized by a queasy sensation in the stomach, often accompanies various conditions like infections, motion sickness, or pregnancy. Symptoms may include increased salivation, sweating, vomiting, and aversion to food odours. While temporary episodes of nausea are common and often resolve on their own, persistent or severe cases warrant medical attention. It's crucial to seek a doctor's advice if nausea is accompanied by severe abdominal pain, dehydration, blood in vomit, or lasts for more than a few days. Timely diagnosis and treatment can address underlying causes and alleviate discomfort, ensuring optimal health and well-being.

FAQs

1. What causes nausea?

Nausea can stem from various factors, including infections, motion sickness, pregnancy, chemotherapy, migraines, or gastrointestinal disorders. It's the body's protective mechanism to signal potential harm or discomfort.

2. How can I relieve nausea at home?

Home remedies like ginger, peppermint, acupressure, lemon, deep breathing, and consuming bland foods may alleviate nausea. However, if symptoms persist or worsen, seeking medical attention is recommended.

3. When should I see a doctor for nausea?

Consult a doctor if nausea is severe, persistent, accompanied by severe abdominal pain, dehydration, blood in vomit, or lasts for more than a few days.

4. Can medications cause nausea?

Yes, certain medications, including antibiotics, painkillers, antidepressants, and chemotherapy drugs, can induce nausea as a side effect.

5. Is nausea during pregnancy normal?

Yes, nausea, commonly known as morning sickness, is a typical symptom during early pregnancy, usually subsiding after the first trimester. However, severe or persistent nausea (hyperemesis gravidarum) may require medical attention.

6. What is nausea a symptom of?

Nausea can be a symptom of numerous conditions, including viral infections, food poisoning, motion sickness, migraines, pregnancy, chemotherapy, and gastrointestinal disorders like gastritis or gastroenteritis. It can also result from stress, anxiety, or certain medications. Additionally, dehydration and overeating can induce nausea. If persistent or severe, consult a healthcare professional for proper diagnosis and treatment. Understanding underlying causes is crucial for effective management and relief of nausea. Always seek medical advice for persistent or concerning symptoms.

7. What is nausea without vomiting?

Nausea without vomiting refers to the sensation of feeling queasy or unsettled in the stomach without actually vomiting. It can be caused by various factors such as motion sickness, anxiety, stress, medications, or underlying medical conditions. Nausea without vomiting can occur in the early stages of illness when the body attempts to expel toxins. It's essential to address underlying causes and manage symptoms accordingly. Seeking medical advice can help determine the best course of action for relief and treatment.

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