Med Matrix functional medicine and wellness clinic

Long COVID Symptoms That Won't Go Away: Spike Proteins, Micro-Clots, and How to Recover

Cole Siefer (co-founder, host), Dr. Rose (naturopathic physician), Colin Renaud, DC, PA-C34:18Long COVIDFebruary 2, 2026

Episode Summary

Dr. Rose and Colin Renaud (DC, PA-C) provide one of the most clinically detailed explanations of long-haul COVID available on the Med Matrix channel, covering physiology, diagnosis challenges, treatment philosophy, and real-world case complexity. The episode explains endothelial dysfunction, micro-clots, and spike protein persistence as the primary suspected mechanisms, while emphasizing that most long-haul COVID patients have underlying health vulnerabilities (gut dysfunction, immune dysregulation, prior undiagnosed infections) that COVID pushed over the edge. The providers also address adrenal/cortisol depletion, the vaccine-COVID symptom overlap, EDS, POTS, and MCAS as related presentations. The episode ends with Q&A from live viewers.

Key Topics

  1. 1

    Clinical definition of long-haul COVID (symptoms persisting more than 4 weeks, some studies use 12 weeks)

  2. 2

    Multi-systemic symptom presentation (fatigue, brain fog, shortness of breath, heart palpitations, joint pain, headaches)

  3. 3

    Why long-haul COVID is frequently misdiagnosed or unrecognized in conventional settings

  4. 4

    Endothelial dysfunction and micro-clotting as a core physiological mechanism

  5. 5

    The spike protein theory: protein embeds in gut, heart, and other soft tissues, driving chronic inflammation

  6. 6

    How pre-existing conditions and immune vulnerabilities make people more susceptible

  7. 7

    Why elite athletes are not necessarily protected from long-haul COVID

  8. 8

    The role of cortisol depletion and adrenal fatigue stages in immune vulnerability

  9. 9

    COVID vaccine as a trigger for long-haul-like symptoms (clinical confirmation: yes)

  10. 10

    How Med Matrix approaches treatment: foundational optimization first, then targeted support

Quotable Moments

A lot of people especially that I've seen have had some sort of issue in the past. Was their health tip-top when they got COVID? Probably not. Maybe they had a gut issue, an underlying immune dysfunction, an undiagnosed infection like Lyme disease. COVID just brought them to the edge of the cliff and pushed them over.

Colin Renaud, DC, PA-C

For most of our patients that are of elite status who got long COVID, I think they were probably doing too much. They were burnt out. They had no cortisol. If you're not giving yourself the tools you need to heal, you're going to burn yourself out and then you won't have the reserves to get better when you do get sick.

Colin Renaud, DC, PA-C

These are invisible illnesses. They don't look like anything wrong. 'Oh, you look fine.' Maybe you're depressed. The physical exam is normal. There's no blood test that shows how fatigued you are. So people live struggling for years.

Colin Renaud, DC, PA-C

The simple answer is yes, the COVID vaccine can cause long-haul COVID. I've seen it clinically many times. An assault was put in the body, and it shook things up. The immune system has to be functioning properly to process what is being given.

Dr. Rose

Cortisol is what keeps you going. It regulates your body's ability to handle stressors. If you've overexerted physically or mentally, it's almost like running out of gas. When that happens, the body's ability to maintain homeostasis gets thrown off.

Colin Renaud, DC, PA-C

Treatments Mentioned

Comprehensive initial blood work including cortisol levelsGut health assessment (stool testing, bowel regularity evaluation)Anti-inflammatory dietary protocolsCortisol and adrenal gland support (nutritional, botanical, lifestyle)Hormone optimization (sex hormones, thyroid)Peptide therapy (nervous system support, anti-inflammatory)Low-dose naltrexone (LDN)IV therapy: glutathione, vitamin C, NAD, nutrient infusionsOmega-3 fatty acids and anti-inflammatory nutraceuticalsLiver and kidney detoxification supportStress reduction and nervous system regulation protocolsEDS, POTS, and MCAS evaluation and treatment

Long COVID FAQ

Long COVID is defined as symptoms persisting beyond 4 to 12 weeks after infection. Symptoms can include fatigue, brain fog, shortness of breath, heart palpitations, joint pain, and headaches. These may be different from the original infection and can last months to years without proper treatment.

The primary suspected mechanisms include endothelial dysfunction (blood vessel lining damage), micro-clotting that impairs circulation, and spike protein persistence in gut and heart tissue that generates ongoing inflammation. Many patients also had pre-existing vulnerabilities that COVID pushed over the edge.

Both providers confirm they have seen long-haul-like symptoms triggered by the COVID vaccine. The mechanism is similar: if the immune system is dysregulated, symptoms can persist. The treatment approach is the same as for infection-triggered long COVID.

Conventional approaches focus on antidepressants, therapy, and anti-inflammatory drugs. Functional medicine addresses gut optimization, cortisol and adrenal support, hormone balancing, anti-inflammatory nutrition, peptides, low-dose naltrexone, and IV therapy with glutathione, vitamin C, and NAD.

Overtraining depletes cortisol reserves. Without adequate recovery, even someone at peak fitness can be overwhelmed by a severe immune challenge. Many elite athletes who developed long COVID were burning out their adrenal reserves, leaving no physiological capacity to heal.

No. Long COVID involves measurable physiological dysfunction including endothelial damage, micro-clotting, and immune dysregulation. These are invisible illnesses where conventional labs may appear normal, leading to medical gaslighting. Functional medicine uses optimal ranges and cross-references them with symptom patterns.

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