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What are the Most Common Causes of Nausea and Weakness?

Nausea and weakness often stem from a variety of sources, including viral infections, food poisoning, dehydration, and stress. These symptoms can also signal underlying medical conditions, such as migraines or gastrointestinal disorders. Understanding your body's signals is crucial. Have you considered what your symptoms are telling you? Join us as we unravel the messages behind nausea and weakness.
Nicole Madison
Nicole Madison
Nicole Madison
Nicole Madison

There are many things that may cause a person to experience nausea and weakness. Food poisoning is among the most common causes, especially when dehydration occurs as well. Problems with blood sugar may also cause these issues. For example, both low blood sugar and high blood sugar can be responsible for weakness and stomach upset. A pregnant woman may also experience these symptoms because of morning sickness.

One of the most common causes of nausea and weakness is food poisoning. Food poisoning occurs when a person consumes an edible item that has been contaminated with bacteria, viruses, or even parasites. In fact, this type of poisoning may even occur because food or drink has been contaminated with a toxic substance. Food poisoning is often accompanied by nausea, vomiting, diarrhea, and weakness. The weakness may be especially pronounced when a person hasn’t kept any food or drink down for a significant amount of time or if he becomes dehydrated.

Pregnant women commonly experience nausea and weakness.
Pregnant women commonly experience nausea and weakness.

Hypoglycemia, which is low blood sugar, is also among the most common causes of nausea and weakness. The body uses blood sugar for fuel. When this fuel is not present in adequate amounts, the body may not function normally. The result may not only be weakness and nausea, but also irritability, tremors, confusion, dizziness, sweating, and hunger. Severe cases, called insulin shock, can result in seizures and nerve damage if left untreated.

Salmonella, a common cause of food poisoning, can cause nausea and weakness.
Salmonella, a common cause of food poisoning, can cause nausea and weakness.

High blood sugar, also called hyperglycemia, is another common cause of nausea and weakness, in addition to fatigue, thirst, dry mouth, and frequent urination. If high blood sugar levels persist or are severe, a person may also experience confusion, abdominal pain, weight loss, or shortness of breath. A serious case may even result in a coma.

Morning sickness is a common cause of nausea and weakness as well. Often, pregnant women experience nausea and vomiting that is referred to as morning sickness, which may cause symptoms at any time of the day or night. The nausea often progresses to vomiting and may make it hard for a woman to consume certain foods, eat at certain times of the day, or keep food down. Sometimes even smelling foods can lead to symptoms. As a result of frequent vomiting or lowered food consumption, a woman may feel tired and weak in addition to the nausea that marks morning sickness.

Nicole Madison
Nicole Madison

Nicole’s thirst for knowledge inspired her to become a TheHealthBoard writer, and she focuses primarily on topics such as homeschooling, parenting, health, science, and business. When not writing or spending time with her four children, Nicole enjoys reading, camping, and going to the beach.

Learn more...
Nicole Madison
Nicole Madison

Nicole’s thirst for knowledge inspired her to become a TheHealthBoard writer, and she focuses primarily on topics such as homeschooling, parenting, health, science, and business. When not writing or spending time with her four children, Nicole enjoys reading, camping, and going to the beach.

Learn more...

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Discussion Comments

literally45

@fBoyle-- Yes, fibromyalgia can cause both nausea and weakness. I have both, as well as headaches and muscle cramps. I think that nausea is a very common fibromyalgia symptom. Most people I've spoken to about fibromyalgia have mentioned it.

Fibromyalgia is such a complicated disorder. No one knows the exact cause and there are probably different types of causes. That's why symptoms can vary a little bit from person to person but pain and fatigue seem to be common for everyone.

Have you been diagnosed with fibromyalgia? Chronic fatigue syndrome, which is a different disorder, can cause these symptoms too.

fBoyle

I know that fibromyalgia causes fatigue, but does it also cause nausea?

donasmrs

I experience nausea and weakness due to diabetes. Diabetes and the medication I'm using for it causes chronic weakness. So I have that symptom almost all the time. If my sugar is low or high, I also have nausea. The weird part is that I can't tell sometimes whether my blood sugar is abnormal. I just feel very sick like I have the stomach flu. When I use my blood sugar monitor, I realize that my sugar is the problem.

I guess it's good that my body has a way of telling me that something is wrong. But I can't say that I enjoy living with these symptoms on a daily basis.

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    • Pregnant women commonly experience nausea and weakness.
      By: Przemek Klos
      Pregnant women commonly experience nausea and weakness.
    • Salmonella, a common cause of food poisoning, can cause nausea and weakness.
      By: Lyuba Bunakova
      Salmonella, a common cause of food poisoning, can cause nausea and weakness.
    • There are many reasons, such as food poisoning or blood sugar issues, that a person may experience nausea and weakness.
      By: Alliance
      There are many reasons, such as food poisoning or blood sugar issues, that a person may experience nausea and weakness.
    • Hyperglycemia is a common cause of nausea, weakness and frequent urination.
      By: bruno135_406
      Hyperglycemia is a common cause of nausea, weakness and frequent urination.
    • A flu virus can cause nausea and weakness.
      By: lightwavemedia
      A flu virus can cause nausea and weakness.
    • Nausea is a sensation that generally occurs before an individual vomits.
      By: pathdoc
      Nausea is a sensation that generally occurs before an individual vomits.
    • Dehydration and lack of proper nutrition can cause nausea and muscle weakness all over the body.
      By: Ambrose
      Dehydration and lack of proper nutrition can cause nausea and muscle weakness all over the body.
    • Drinking excessive amounts of coffee can lead to nausea and weakness when a person "crashes."
      By: volff
      Drinking excessive amounts of coffee can lead to nausea and weakness when a person "crashes."