Feeling Nauseous After Exercise: Could It Be Mild Gastritis? - Internal Medicine

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Feeling so hungry that you feel nauseous?


Recently, I have been exercising after meals, but after working out, I always feel very hungry yet hesitant to eat.
This leads to a strong urge to vomit, although I have little appetite...
I looked it up online, and it seems to suggest "mild gastritis"? (I have previously experienced symptoms of stomach pain.)

Xiao Cen, 10~19 year old female. Ask Date: 2021/07/21

Dr. Hong Yuanbin reply Internal Medicine


Hello, exercise increases adrenaline and related hormones in the body, which can suppress appetite and cause feelings of nausea.
This is a normal physiological response after exercise.
It is recommended to take a short rest and hydrate, or consume diluted sports drinks, which should help improve the situation.
There's no need to worry.
Thank you for your question.

Reply Date: 2021/07/21

More Info


Feeling nauseous after exercise can indeed be concerning, especially if you have a history of gastric issues. While mild gastritis could be a possibility, it is essential to consider various factors that might contribute to your symptoms.

Firstly, it's important to understand that exercise can significantly affect your body's physiological responses. During physical activity, your body releases adrenaline and other hormones that can suppress appetite temporarily. This hormonal response can lead to feelings of nausea, especially if you engage in vigorous exercise shortly after eating. The body prioritizes blood flow to the muscles and skin during exercise, which can divert blood away from the digestive system, potentially leading to discomfort and nausea.

If you are feeling very hungry after exercising but are reluctant to eat, this could create a cycle of hunger and nausea. It is crucial to listen to your body and provide it with the necessary nutrients post-exercise. Consuming a light snack that is easy to digest, such as a banana or a small protein shake, can help alleviate feelings of nausea and provide your body with the energy it needs for recovery.

Regarding your concern about mild gastritis, this condition is characterized by inflammation of the stomach lining, which can cause symptoms such as stomach pain, nausea, and a feeling of fullness. If you have a history of gastric pain, it is possible that your symptoms could be related to gastritis, especially if you have been experiencing discomfort consistently. However, it is also essential to consider other factors such as diet, stress levels, and the intensity of your exercise routine.

If you suspect that your symptoms may be related to gastritis, it would be wise to avoid certain foods that can irritate the stomach lining, such as spicy foods, caffeine, alcohol, and acidic foods. Additionally, eating smaller, more frequent meals rather than large meals can help manage symptoms.

Another aspect to consider is the timing of your exercise. Engaging in physical activity immediately after eating can lead to discomfort. It might be beneficial to wait at least 1-2 hours after a meal before exercising to allow your body to digest the food properly.

If your symptoms persist or worsen, it is advisable to consult a healthcare professional. They may recommend diagnostic tests, such as an endoscopy, to assess the condition of your stomach lining and rule out any serious issues. Furthermore, they can provide guidance on appropriate dietary changes and treatment options if gastritis is confirmed.

In summary, while mild gastritis could be a potential cause of your nausea after exercise, it is essential to consider the broader context of your eating habits, exercise routine, and overall health. Listening to your body, adjusting your exercise timing, and being mindful of your diet can significantly help manage your symptoms. If in doubt, seeking medical advice is always the best course of action to ensure your health and well-being.

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