Decreased Appetite: Possible Causes and Concerns - Gastroenterology and Hepatology

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Decreasing appetite?


Hello doctor, I would like to ask about my condition.
I have not had an appetite for quite some time (about three weeks).
Initially, although I lacked appetite, I was still able to eat a substantial amount of food.
However, my food intake has decreased significantly, and now I feel full after eating just a little, sometimes even feeling nauseous (though I haven't actually vomited).
Occasionally, I experience dizziness and headaches (which were frequent at first but now only happen occasionally).
Additionally, I have been experiencing diarrhea; my stools are either loose or watery, but the color is normal and not black or anything unusual.
At night, I often feel hungry and occasionally hear gurgling sounds from my stomach.
I have already visited two hospitals, but there hasn't been much improvement after taking the prescribed medication.
I am concerned about what might be wrong.
Could it be cancer? I am only 25 years old, and my stool color is normal, but I am still very anxious.
Also, I have experienced panic attacks a few times recently, particularly when eating out, and the last time I ate out was when these symptoms began.
I am currently taking medication for panic attacks.
Could my stomach issues be related to this?

Ren Long, 20~29 year old female. Ask Date: 2022/04/19

Dr. Lin Minghui reply Gastroenterology and Hepatology


Hello: You are experiencing a decreased appetite, feeling full after eating small amounts, occasional dizziness, loose stools, and abdominal sounds.
Medication has not improved your condition, and you have symptoms of panic disorder.
Differential diagnoses include gastroenteritis, intestinal obstruction, peptic ulcer disease, and irritable bowel syndrome.
Since gastrointestinal symptoms have not improved, it is recommended to continue follow-up with a gastroenterology outpatient clinic and arrange appropriate examinations.
Psychological factors can influence physiological conditions, and it is important to rule out any organic abnormalities that may be related to psychological factors.
Wishing you peace and health! Sincerely, Dr.
Lin Ming-Hui, Attending Physician, Department of Gastroenterology, Taoyuan General Hospital, Ministry of Health and Welfare.

Reply Date: 2022/04/19

More Info


Decreased appetite can be a concerning symptom, especially when it persists for an extended period, as you have described. There are several potential causes for your symptoms, and it is essential to consider both physical and psychological factors.

Firstly, it is important to note that a decrease in appetite can be associated with various medical conditions. These can range from gastrointestinal issues, such as gastritis, peptic ulcers, or even infections, to more systemic conditions like thyroid disorders or diabetes. Given your symptoms of nausea, occasional dizziness, and diarrhea, it is possible that there is an underlying gastrointestinal issue that needs to be addressed. Conditions like irritable bowel syndrome (IBS) or food intolerances could also lead to decreased appetite and gastrointestinal discomfort.

Moreover, your history of panic attacks, particularly in social situations like eating out, may also play a significant role in your current symptoms. Anxiety can manifest physically, leading to symptoms such as nausea, changes in appetite, and gastrointestinal disturbances. It is not uncommon for individuals with anxiety disorders to experience a decreased appetite or aversion to eating, especially if they associate eating with anxiety-provoking situations.

The fact that you have experienced panic attacks while eating out could suggest that your anxiety is contributing to your gastrointestinal symptoms. The body’s stress response can affect digestion and appetite, leading to feelings of fullness or nausea even when you have not eaten much. This could explain why you feel full after eating only a small amount of food.

In terms of your concerns about cancer, while it is natural to worry about serious conditions when experiencing unexplained symptoms, it is essential to remember that many other, less severe conditions can cause similar symptoms. Your age (25 years) and the fact that your stool color is normal are reassuring signs. However, if you have persistent concerns, it is crucial to communicate these with your healthcare provider, who may recommend further testing or referrals to specialists, such as a gastroenterologist.

Given that you have already consulted with two hospitals and have not seen improvement, it may be beneficial to seek a comprehensive evaluation that includes a detailed history, physical examination, and possibly some diagnostic tests (such as blood tests, imaging studies, or endoscopy) to rule out any underlying conditions.

In the meantime, managing your anxiety may also help alleviate some of your gastrointestinal symptoms. Consider discussing with your healthcare provider about the possibility of adjusting your anxiety medication or incorporating therapy, such as cognitive-behavioral therapy (CBT), which has been shown to be effective for anxiety and panic disorders.

In summary, your decreased appetite and gastrointestinal symptoms could be related to a combination of physical and psychological factors. It is essential to continue working with your healthcare providers to explore these issues further, ensuring that both your physical health and mental well-being are addressed. If you experience any new or worsening symptoms, such as significant weight loss, persistent vomiting, or severe abdominal pain, seek medical attention promptly.

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