Unexplained Fatigue and Weight Gain

A Patient Guide

Many people experience unexplained fatigue and weight gain. Despite what healthcare providers might suggest, these are valid medical symptoms that deserve proper investigation, not blame or oversimplified solutions.

What Are Unexplained Fatigue and Weight Gain?

Unexplained fatigue and weight gain are medical symptoms that can signal underlying health conditions. Think of fatigue like your body’s energy battery being constantly low – it’s a real physiological state, not a personal failing. Weight gain is a symptom that can accompany many medical conditions, as opposed to a cause of health issues, It is not the result of lifestyle choices, not should it be judged by healthcare providers.

Main Symptoms

  • Persistent, unexplained tiredness that doesn’t improve with rest
  • Difficulty completing daily tasks due to exhaustion
  • Sleep that doesn’t feel refreshing
  • Physical and mental exhaustion
  • Changes in appetite or eating patterns

Understanding the Connection

Fatigue and weight changes often occur together because:

  • They are both symptoms of underlying conditions
  • Many health conditions affect both energy regulation and metabolism
  • Systemic inflammation can impact both
  • Hormonal changes often affect both energy and body composition
  • Medications that affect one often affect the other

Causes of Unexplained Fatigue and Weight Gain

There are a number of potential underlying causes and it is important to note that in most cases, multiple factors are contributing simultaneously. These include (but are not limited to):

Physical Causes

  • Sleep disorders (including sleep apnea)
  • Hormonal imbalances:
    • Thyroid dysfunction
    • Insulin resistance
    • Adrenal issues
    • Menopause/perimenopause
  • Nutrient deficiencies (iron, B12, vitamin D)
  • Underlying issues with the heart, lungs, kidneys, liver etc.
  • Medication side effects
  • Complex conditions (ME/CFS, Long COVID, Fibromyalgia)

Mental Health Factors

  • Chronic stress (affecting cortisol levels)
  • Trauma and PTSD
  • Depression and anxiety
  • Neurodivergence (ADHD, autism)

Systemic Factors

The medical system routinely blames individuals while ignoring these systemic root causes: 

  • Chronic stress from societal pressures
  • Limited access to healthcare
  • Economic barriers to receiving proper care
  • Social determinants of health

Getting Proper Care

Getting proper medical care when experiencing unexplained fatigue and weight gain can be challenging due to widespread weight stigma in healthcare. Many people stop seeking medical help after repeatedly having their symptoms dismissed, being told to ‘just lose weight,’ or having serious health concerns ignored due to size bias. 

How Weight Stigma Affects Your Care

Common problematic medical responses include:

  • Blaming symptoms on weight rather than investigating underlying causes
  • Praising unexplained weight loss when it’s actually a sign of illness
  • Prescribing weight loss instead of treating actual symptoms
  • Assuming symptoms are “lifestyle-related” without evidence
  • Delaying proper testing and treatment due to weight stigma
  • Missing serious conditions due to weight-based assumptions

Your Rights as a Patient

You deserve healthcare that:

  • Investigates your symptoms without blame
  • Recognizes weight changes as symptoms, not causes
  • Includes a thorough history, examination, and investigations
  • Respects your experiences
  • Treats underlying conditions, not just symptoms
  • Never requires weight loss as a prerequisite for care
  • Focuses on health outcomes, not weight

Working with Healthcare Providers

Your experiences of medical weight stigma are real, valid, and traumatic. Your reluctance to seek healthcare reflects a broken system, not a personal failing. However, you deserve proper care for your symptoms, and there are strategies you can use to advocate for yourself and find healthcare providers who will investigate the real causes of your fatigue without focusing on weight. Here are some suggestions:

  1. Track your symptoms and their impact on your daily life
  2. Request appropriate testing regardless of weight
  3. Decline weight loss discussions and focus on symptoms
  4. Seek providers who practice weight-inclusive healthcare
  5. Know that you can refuse weigh-ins and weight-related discussions

Advocating for Yourself

When seeking care:

  • Refuse to engage in weight-focused discussions
  • Redirect conversations to your actual symptoms
  • Request clear documentation of symptoms, testing, and any treatment denials
  • Consider finding weight-inclusive healthcare providers
  • Consider working with patient advocates
  • Join online communities for additional support
  • Know that weight stigma in healthcare is a form of discrimination

Remember

  • Fatigue is a real medical symptom that deserves proper investigation
  • Weight gain is a symptom, not a cause of health issues
  • You deserve care that doesn’t require weight loss
  • Weight changes and fatigue often share underlying causes
  • Effective treatment addresses root causes, not weight
  • Your symptoms are valid regardless of your size
  • You have the right to refuse weight-focused interventions

Further Resources

This guide was created by Dr. Asher Larmie (The Fat Doctor), a weight-inclusive healthcare provider specializing in helping patients navigate medical bias and advocate for proper care. For a deeper understanding of managing fatigue and advocating for yourself in medical settings, consider joining Dr. Larmie’s comprehensive masterclass: “Why Am I Tired All the Time?” This course provides detailed strategies for:

  • Creating your own symptom diary
  • Developing a personalized management plan
  • Writing effective scripts for medical appointments
  • Getting proper testing and care

This information is provided for educational purposes and should not replace professional medical advice. Always consult with healthcare providers for personal medical decisions.