There could be various reasons why you might be eating a lot but still remaining underweight. It's essential to consult with a healthcare professional to get a proper evaluation and personalized advice. However, I can mention some potential factors that might contribute to this situation:
High metabolism: Some individuals naturally have a faster metabolism, which means their bodies burn calories at a higher rate, making it difficult to gain weight even with increased food intake.
Hyperthyroidism: An overactive thyroid gland can lead to an increased metabolic rate, resulting in difficulty gaining weight.
Malabsorption issues: Certain medical conditions or gastrointestinal disorders can interfere with the absorption of nutrients from food, leading to weight loss despite eating enough.
Chronic stress or anxiety: Stress and anxiety can affect appetite and may lead to unintentional weight loss or difficulty gaining weight.
Eating disorder: You mentioned a history of binge eating, and eating disorders can have complex effects on weight and metabolism. If you are currently struggling with disordered eating behaviors, it may be impacting your weight.
Increased physical activity: Engaging in high levels of physical activity without compensating with enough calories can lead to weight loss or difficulty gaining weight.
Other medical conditions: There are various medical conditions that can cause unintentional weight loss or difficulty gaining weight. Examples include diabetes, celiac disease, certain cancers, and more.
If you are concerned about your weight and eating habits, it's crucial to schedule an appointment with a healthcare professional, such as a doctor or a registered dietitian, who can conduct a comprehensive evaluation, consider your medical history, perform any necessary tests, and provide appropriate guidance and support. They can help determine the underlying cause and recommend a suitable plan to address your specific situation.