Fatigue is one of the most common reasons people come to see us at Brightmark Health. If you’ve been feeling chronically tired – despite getting “enough” sleep – you’re not alone. But that doesn’t mean you have to accept it as your new normal.
While many people assume fatigue must mean a thyroid problem, the reality is that there are many causes of fatigue and tiredness – and figuring out what’s really going on takes time, attention, and the right approach.
Fatigue Isn’t Always Just One Thing
Tiredness can stem from physical, emotional, hormonal, or lifestyle-related issues—or a combination of several. Some of the most common causes include:
🛌 Poor Sleep Quality
- Insomnia
- Obstructive sleep apnea (often undiagnosed!)
- Restless legs or other nighttime disruptions
💊 Hormonal or Metabolic Imbalances
- Thyroid dysfunction (yes, it’s a possibility – but not the only one)
- Diabetes or prediabetes
- Adrenal insufficiency
- Vitamin deficiencies, especially B12 or vitamin D
🧠 Mental Health Conditions
- Depression and anxiety can both sap energy – even without obvious sadness or worry
- Mental fatigue often presents with physical symptoms
⚖️ Electrolyte Abnormalities
- Imbalances in sodium, potassium, calcium, or magnesium can affect how your muscles and nerves function
🍽️ Lifestyle Factors
- Poor diet, dehydration, sedentary routines
- Alcohol or caffeine overuse
- Chronic stress or burnout
How We Approach Fatigue at Brightmark Health
We don’t jump to conclusions or run a generic “fatigue panel” and send you on your way. Our approach starts with listening carefully and understanding the full context of your health.
1. Detailed History & Physical Exam
We ask about:
- Sleep patterns and habits
- Energy fluctuations during the day
- Mood and stress levels
- Medications and supplements
- Diet and hydration
- Menstrual or hormonal changes (if relevant)
A thorough physical exam can also offer important clues.
2. Targeted Lab Work
We don’t over-test, but we do order labs thoughtfully. These may include:
- Thyroid function (TSH, free T4)
- Blood sugar (glucose, A1c)
- Complete blood count (looking for anemia or infection)
- Electrolytes and kidney function
- Vitamin levels (B12, D)
- Cortisol or other hormone testing (if appropriate)
3. Sleep and Mental Health Evaluation
If we suspect sleep apnea, we may order a home sleep study. If symptoms point toward depression or anxiety, we’ll talk through those possibilities and make a plan together, whether that’s therapy, lifestyle adjustments, or medication support.
Fatigue Is a Symptom, Not a Diagnosis
Our job is to investigate and connect the dots. In some cases, the cause is simple and easily treated. In others, it takes time and a bit of trial-and-error to uncover what’s really draining your energy. Either way, you’ll have a partner in the process.
Let’s Find the Causes of Fatigue and Tiredness – Together
You don’t have to settle for feeling exhausted all the time. If fatigue is interfering with your daily life, we can help you get to the bottom of it, with a thoughtful, individualized approach.
Schedule a visit at Brightmark Health today, and let’s start finding answers.