Type B Neuroimmune

an interlocked brain–immune–autonomic state that develops under cumulative exposure, infection, and relational-trauma load.

B is for Bound

A Type B system is one where the brain, immune, and autonomic nervous systems have become tightly bound together—so when one fires, they all fire.

What is Type B Neuroimmune?

Type B Neuroimmune is my term for a specific, interlocked brain–immune–autonomic state that develops under cumulative environmental toxin, chronic infection, and relational‑trauma load.

It’s not “just anxiety,” and it’s not a single diagnosis like Lyme or CFS. Nor is Type B a personality style, a stress response, or a vague way of saying “sensitive.” Rather it’s a configuration your system moves into when it has had to survive too much, for too long, with not enough safety and repair.

The Type B model proposes that in some chronic‑illness patients, repeated environmental, infectious, and relational insults do not simply create parallel diagnoses like:

  • Mold / biotoxin illness / CIRS

  • Chronic Lyme disease and co‑infections (Bartonella, Babesia)

  • Post‑infectious and viral‑driven syndromes (Long‑COVID, ME/CFS, CAEBV, HHV‑6, VZV)

  • MCAS / histamine intolerance

  • IBS / SIBO / gut dysbiosis / leaky gut / food allergies and sensitivities

  • POTS / dysautonomia and other neuro‑cardio / autonomic syndromes

  • PANS/PANDAS and other post‑infectious neuropsychiatric patterns

  • Neuropsychiatric and cognitive changes (anxiety, intrusive/OCD‑like thoughts, brain fog, flat/atrophic brain states)

  • Overlapping pre‑autoimmune or autoimmune diagnoses (Crohn’s, RA, Hashimoto’s, Lupus, MS, Parkinson’s, Alzheimer’s)

Instead, these labels are surface expressions of a single, integrated neuroimmune‑autonomic system‑state: Type B Neuroimmune.

Type B people are usually bright, conscientious, and sensitive. They often do “all the right things” and may even look functional on the outside, while their physiology is stuck in an inflamed, under‑oxygenated, energy‑poor, hyper-alert or shutdown state. The common thread is not any one diagnosis—it’s how the neuroimmune system is responding, its capacity, and it’s bound and reactive, merged systems‑state.

What it feels like to live with a Type B body

Living in a Type B Neuroimmune physiology often means several systems are affected at once.

Brain and Peripheral Nerves 

  • Brain fog, word‑finding issues, difficulty learning new skills

  • Sensory overload (light, sound, chemicals, textures)

  • Feeling “wired and tired” at the same time

Autonomic and Cardiovascular

  • POTS‑like symptoms: dizziness, palpitations, intolerance to standing

  • Temperature dysregulation, night sweats, cold hands and feet

  • Strong startle response; feeling “on edge” most of the time

Immune and Inflammatory

  • MCAS‑type reactions: flushing, itching, hives, food and chemical sensitivities

  • Migraines or chronic headaches

  • Flares with mold, wildfire smoke, infections, or stress

Gastrointestinal

  • IBS‑type patterns: diarrhea/constipation, cramping, bloating, nausea

  • Food reactions and sensitivities; feeling like your “safe foods” keep shrinking

Musculoskeletal and Metabolism

  • Muscle pain, fibromyalgia‑like tenderness, joint pain

  • Fatigue that sleep doesn’t fix

  • Crash‑and‑burn cycles after physical exertion or emotional stress

Psychological and Relational

  • Anxiety, depression, emotional flooding, irritability, or numbness

  • Quickly shifting emotions; feeling “too much” or “too sensitive” 

Many Type B clients tell me: “I’ve been told I’m so sensitive.” My work starts from the premise that what you feel is real and reflects specific neuroimmunological and physiological phenomena.

In addition, as a result of this interlocked brain–immune–autonomic state, Type B patients tend to become more reactive and less resilient over time. They often:

  • React to supplements, herbs, detoxes, or medications

  • Worsen with rigid mold, Lyme/co‑infection, or MCAS protocols

  • Have poor tolerance for standard nervous‑system retraining programs

  • Experience symptom escalation under relational stressors, not just biotoxin exposures or infection flares

This is the lived experience of Type B Neuroimmune: a body that may look “fine” on paper to many clinicians, while from the inside it feels like you’re walking around in a hyper‑reactive, under‑resourced system.

How a Type B Neuroimmune system forms

Type B Neuroimmune systems have usually been living under cumulative, overlapping load across three core domains:

1. Biotoxin & Environmental Load
Water‑damaged buildings and mold; actinobacteria and endotoxins; red tide and blue‑green algae; ciguatera; poisonous spider bites (brown recluse, black widow); and other environmental toxicants such as PM 2.5 from forest fires and synthetic VOCs.

2. Chronic Infection Load
Lyme and other vector‑borne pathogens (Bartonella, Babesia); viral infections such as EBV, HHV‑3/Varicella‑zoster virus, CMV, and Long COVID; bacterial infections such as Chlamydia pneumoniae and Mycoplasma pneumoniae; and other chronic parasitic infections from bacteria, viruses, protozoa, fungi, and helminths.

3. Nervous System & Relational Load
cPTSD, developmental and attachment trauma, and chronic exposure to narcissistic or other toxic relational dynamics that act as persistent psychosocial toxicants and translate into real physiologic load on the nervous and immune systems, adding to the cumulative biotoxin and infection loads

Over time, these three primary loads drive recognizable patterns of immune, autonomic, and structural physiologic change. This is what creates the Type B Neuroimmune state.

Immune & Mast‑Cell Dysregulation

  • Chronic Inflammatory Response Syndrome (CIRS)–type patterns

  • Mast Cell Activation Syndrome (MCAS) and histamine intolerance / reactivity

  • Multiple Chemical Sensitivity (MCS) / Toxicant‑Induced Loss of Tolerance (TILT)

  • Autoimmune and autoinflammatory tendencies

  • Allergies and immunodeficiency patterns

Autonomic & Metabolic Dysregulation

  • POTS‑like dysautonomia; blood pressure and heart rate swings

  • Temperature instability

  • Post‑exertional crashes

  • Sleep disruption

Downstream Structural Physiologic Change

  • Brain swelling and atrophy

  • Hypothalamic–pituitary–thyroid–adrenal–sex hormone changes (often with multiple hormone deficiencies)

  • Peptide and neuropeptide depletion

  • Endothelial and barrier‑tissue damage (blood–brain barrier, gut, sinus, and other mucosal surfaces)

  • Neurotransmitter imbalances

The result is not “just trauma” and not “just mold or Lyme,” but a single, interlocked brain–immune–autonomic state:

Type B Neuroimmune.