Fatigue & Low Energy in San Diego, CA
At Thrive Wellness, persistent fatigue and low energy are among the most common concerns we investigate — and among the most successfully resolved when the root physiological causes are properly identified and addressed. If you’re exhausted despite adequate sleep, struggling to get through the day, or relying on caffeine just to function, there is a reason — and it’s not “just stress” or “getting older.” Our San Diego, CA team will find it. Call (619) 984-4317 or book a free initial consultation to get started.
Book OnlineWhy Fatigue Persists — and What’s Actually Causing It
Fatigue is one of the most common complaints in primary care — and one of the most commonly dismissed. When standard lab panels come back normal and a physician finds nothing obvious, patients are frequently told to sleep more, reduce stress, or simply accept that low energy is a normal part of modern life. At Thrive Wellness, we reject that conclusion. Persistent fatigue is a symptom of underlying physiological dysfunction, and our job is to identify exactly what that dysfunction is.
The most common root causes of chronic fatigue that we identify at Thrive Wellness include HPA axis dysregulation (adrenal fatigue), thyroid dysfunction — particularly subclinical hypothyroidism that falls within conventional reference ranges but below optimal function, mitochondrial dysfunction, nutrient deficiencies (B12, iron, ferritin, vitamin D, magnesium), gut dysbiosis disrupting nutrient absorption and driving systemic inflammation, hormonal imbalances including estrogen dominance and low testosterone, and post-viral fatigue syndromes including long COVID. In many patients, multiple factors are present simultaneously — which is why a single medication or supplement rarely resolves chronic fatigue on its own.
At Thrive Wellness, our Functional Medicine program uses comprehensive lab testing to identify exactly which factors are at play for you specifically, and builds a protocol that addresses each of them in the correct sequence. Acupuncture supports adrenal regulation and nervous system recovery throughout the process, providing symptomatic relief while the deeper physiological work takes effect.
Types of Fatigue We Treat
- Chronic fatigue and persistent low energy
- Adrenal fatigue / HPA axis dysregulation
- Burnout and occupational exhaustion
- Post-viral fatigue and long COVID
- Chronic fatigue syndrome (ME/CFS)
- Thyroid-related fatigue (hypothyroid, Hashimoto’s)
- Fatigue from hormonal imbalance (perimenopause, low testosterone, estrogen dominance)
- Fatigue driven by gut dysfunction and poor nutrient absorption
- Mitochondrial dysfunction and cellular energy deficit
- Sleep-related fatigue that persists despite adequate hours
How Thrive Wellness Addresses Fatigue & Low Energy
Functional Medicine: The foundation of our fatigue treatment is comprehensive investigation. Caitlin Fuller and Dr. Adam Fuller use advanced lab testing to assess adrenal function (diurnal cortisol curve), full thyroid panel, sex hormones, nutrient status (B12, iron/ferritin, vitamin D, magnesium, zinc), inflammatory markers, blood sugar regulation, and gut microbiome health. From this picture, a targeted protocol is built — addressing each identified imbalance with professional-grade supplementation, herbal medicine, dietary modification, and lifestyle support. Learn more on our Functional Medicine page.
Acupuncture: Acupuncture supports the adrenal and nervous system recovery that is essential to resolving fatigue — particularly HPA axis dysregulation. Regular acupuncture at Thrive Wellness helps regulate the cortisol rhythm, supports the parasympathetic recovery state, and improves sleep quality — all of which are critical to restoring sustainable energy. Learn more on our Acupuncture & Sports Medicine page.
EMDR Therapy: For patients whose fatigue has a significant stress, burnout, or trauma component, EMDR Therapy & Counseling with Mandy Pfaff addresses the psychological and neurological roots of nervous system dysregulation that perpetuates exhaustion even when the physical causes are being treated.
Fatigue & Low Energy FAQs
What causes chronic fatigue and how does Thrive Wellness identify it?
Chronic fatigue at Thrive Wellness is investigated through comprehensive lab testing including adrenal function (diurnal cortisol), full thyroid panels, sex hormone assessment, nutrient status testing (B12, ferritin, vitamin D, magnesium), inflammatory markers, blood sugar regulation, and gut microbiome analysis. Most patients with chronic fatigue have multiple contributing factors — our functional medicine approach identifies each one and addresses them in a coordinated protocol.
What is adrenal fatigue and how is it treated?
Adrenal fatigue — more accurately described as HPA axis dysregulation — occurs when chronic stress disrupts the normal rhythm of cortisol production. Symptoms include difficulty waking in the morning, energy crashes in the afternoon, poor stress tolerance, disrupted sleep, and brain fog. At Thrive Wellness, we assess adrenal function through a diurnal cortisol test measuring output at four time points throughout the day, then build a protocol combining adaptogenic herbs, targeted nutrients, lifestyle modification, and acupuncture to restore healthy cortisol patterns and energy regulation.
Can thyroid dysfunction cause fatigue even when TSH is normal?
Yes — this is one of the most common findings in our fatigue patients at Thrive Wellness. Standard thyroid screening measures only TSH, but TSH alone misses conversion problems (low free T3), elevated reverse T3 that blocks thyroid receptors, and Hashimoto’s antibodies that indicate autoimmune thyroid destruction. Our full thyroid panel catches these patterns that conventional testing misses — and builds treatment protocols that support optimal thyroid function at the cellular level.
Can acupuncture help with fatigue and low energy?
Yes — acupuncture supports energy restoration through multiple pathways: regulating the HPA axis and cortisol rhythm, improving sleep quality, supporting mitochondrial function, and activating the parasympathetic nervous system state in which cellular repair and recovery occur. At Thrive Wellness, regular acupuncture provides meaningful symptomatic improvement in fatigue while the deeper functional medicine work addresses the root physiological causes.
How is long COVID fatigue treated at Thrive Wellness?
Post-viral fatigue from long COVID typically involves a combination of mitochondrial dysfunction, dysautonomia, neurological inflammation, and HPA axis disruption. At Thrive Wellness, our functional medicine approach addresses each of these contributors through targeted supplementation (CoQ10, NAD+, B vitamins, anti-inflammatory nutrients), gut restoration protocols, and nervous system support. Acupuncture provides additional support for autonomic nervous system regulation and symptom management during recovery.
How long does it take to restore energy levels with functional medicine?
Most patients at Thrive Wellness notice meaningful improvement in energy within 4–8 weeks of starting a targeted protocol. Full resolution of chronic fatigue — particularly for complex cases involving multiple contributing factors or long COVID — typically takes 3–6 months of consistent treatment. Your practitioner will set realistic expectations at your initial consultation and monitor progress with follow-up testing. Call (619) 984-4317 to schedule your free initial telehealth consultation in San Diego, CA .
Are fatigue treatments at Thrive Wellness covered by HSA or FSA?
Yes — all services at Thrive Wellness including functional medicine, acupuncture, and EMDR therapy are covered by HSA and FSA accounts. Functional medicine follow-up packages (3 or 6 sessions) are available at a discounted rate. Visit our Pricing & Packages page or call (619) 984-4317 for details.