What are the Most Common Causes of Upset Stomach and Dizziness?

Upset stomach and dizziness may be attributed to several different causes. An individual may experience an upset stomach as the direct result of taking certain medications, or may experience stomach discomfort after consuming alcohol or taking recreational drugs. Allergic reactions or food intolerance may also cause stomach discomfort in tandem with dizziness. When fever and upset stomach are present at the same time, however, this is usually due to an underlying illness. These symptoms may also be accompanied by diarrhea, which is also usually due to an underlying illness.

Some people have an adverse reaction to certain medications, such as antibiotics. During the course of such a reaction, gastrointestinal discomfort may occur. Generally, upset stomach and dizziness are not present at the same time due to this issue, but such is possible. The stomach discomfort experienced is usually due to antibiotics destroying bacteria that are needed for proper digestion. Some medication instructions require that an individual take them on an empty stomach, which may also cause upset. Generally, the side effects are minimized or completely disappear once a person is allowed to eat.


When alcohol is consumed on an empty stomach, a person is likely to experience upset stomach and dizziness as a result. This is because food slows the rate of alcohol absorption and, without it, alcohol is able to affect the body a lot faster. Carbonated alcoholic beverages are also known to irritate the stomach’s delicate lining, which may cause upset. The dizziness felt is a direct result of alcohol on the brain. Similar symptoms are associated with recreational drug use.

Certain food choices may also cause stomach discomfort. For instance, while garlic is often used to flavor food recipes and is even used as a home remedy for certain symptoms, it is also toxic to some people. Individuals with an adverse reaction to garlic may experience an upset stomach and dizziness. While such a reaction is rare, it is most commonly reported by individuals taking garlic supplements.

When these symptoms are accompanied by fever or diarrhea, this is commonly due to an illness, such as a viral or bacterial infection. If this is the case, other symptoms experienced may include headache, fever, chills and muscle aches. Health experts recommend that people experiencing upset stomach and dizziness, along with other odd symptoms, seek medical attention if the cause is not immediately known.


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Post 3

@SurfNTurf - I usually develop dizziness and nausea when I read in the car. It is something about the movement in the car and me trying to focus on the words on the page that make be feel like throwing up. When I start to get this feeling, I stop and look out the window and the feeling normally goes away after a few minutes. This happens when the there is a lot of stop and go traffic.

Post 2

@Crispety -I know what you mean I also think that if you lay down after eating a heavy meal it could also lead to abdominal pain and heartburn. For example, my husband cannot eat anything with red sauce at night because it really upsets his stomach and then he is miserable the rest of the night.

He will then get acid reflux which after a while burns the lining of his esophagus as well as his stomach and can lead to cancer. This is why he had to make different food choices at dinner time and avoid developing acid reflux.

Post 1

I know that upset stomach symptoms like stomach cramps along with a headache, nausea, and some dizziness happens when I eat too much. I think it is like a hangover that you experience when you drink too much.

I usually have to have an antacid in order to get rid of the nausea and acid in my stomach. I hardly ever have this problem, but once you do you will avoid anything to have it again. I don’t think that there is ever anything worth eating that is worth feeling like this.

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