Environmental & Neuro-Immune Autonomic Consulting

MCAS • POTS •CIRS • MCS • ME/CFS

Proud to be the Scientific Bridge Between Environmental Toxicity and Nervous System Recovery

Welcome

People living with MCAS, POTS, MCS, ME/CFS, Long COVID, and related neuro-immune and autonomic conditions often struggle to make sense of symptoms that shift from day to day.

At New Leaf Neuro, we are an environmental and neuro-immune/autonomic consulting firm. Our work focuses on bridging the gap between environmental exposures and the physiological responses they can trigger in the body. We help individuals understand how environmental factors, physical stressors, and nervous system responses may be influencing their symptoms.

Our approach focuses on helping clients identify potential triggers, interpret environmental reports and exposure patterns, and connect those findings with symptom and flare cycles to better understand what the body may be responding to.

When environmental triggers such as mold, poor indoor air quality, or chemical exposures are present, the focus is on clarifying those exposures and guiding appropriate steps to reduce or remediate them. When the primary trigger has been addressed but symptoms persist, we shift focus toward supporting stabilization and regulation of the nervous system, helping the system move toward greater stability over time.

-Bridging the gap
New Leaf Neuro

Does This Sound Familiar?

✓ You’ve seen multiple doctors but still don’t have clear answers
✓ Symptoms shift and don’t follow predictable rules
✓ You react to foods, stress, temperature, or exertion
✓ You feel worse in certain environments, buildings, or water-damaged spaces
✓ You notice symptoms flare in certain rooms, homes, or workplaces
✓ You react strongly to everyday products like cleaning supplies, fragrances, or new materials
✓ You feel stuck managing flares instead of improving
✓ You’ve been told “everything looks normal”

Your symptoms may look the same from day to day, but the underlying drivers may be different.
Understanding the pattern helps take the guesswork out of how to respond.

Common Symptoms

I'm Constantly Chasing Symptoms

I'm constantly chasing symptoms, visiting doctors who never have answers. My symptoms remain unexplained and often unrelated.

Countless Scans & Tests - No Answers

I have had so many scans and blood test that never seem to bring answers or clarity to my issues.

I Have Massive
Brain Fog

My brain fog, memory loss, and mental fatigue make daily tasks so overwhelming.

MCAS, POTS, Nervous Systems Dysregulation and your sleep

I Feel Hungover, Like My Body Is Poisoned

I feel hungover and sick, as if poisoned, despite not drinking any alcohol.

I End Up At The Emergency Room Too Often

Countless ER visits, no answers and no relief.

I've Been Diagnosed With (POTS) What Now?

I feel stuck, even slight movement sends my heart racing. Despite increasing salt and following a specialized exercise plan, my symptoms remain or worsen.

I'm Scared—Will This Ever Get Better?

I am getting no relief—will I always have to just manage symptoms?

MCAS, POTS, Nervous Systems Dysregulation and brain fog

I Have Developed Anxiety and/or Phobias

I have developed unexplained fears and anxiety I’ve never had before.

Everything Makes My Body React

My body reacts to everything—food, chemicals, EMFs, heat, and more—causing symptoms from anaphylaxis to asthma, hives, palpitations, and GI issues. What’s happening?

It's Not Just Stress

Yes, I have some stress but this is not just stress. I am tried of being prescribed anti-anxiety meds, and then being referred to a psychiatrist.

MCAS, POTS, Nervous Systems Dysregulation and your energy level

I Am Always
Exhausted

I am beyond tired, despite rest, with aching muscles and heaviness.

MCAS, POTS, Nervous Systems Dysregulation and your mood

My Body Feels Overstimulated

Loud sounds, bright lights, crying on TV can trigger agitation and overstimulation.

Different Triggers Same Dysregulation

Environmental Triggers

For many individuals living with these conditions, environmental exposures can play an important role in ongoing symptoms.

Common environmental stressors may include water-damaged buildings, mold and microbial byproducts (including mycotoxins), poor indoor air quality, and chemical sensitivities. These exposures can place stress on the immune and nervous systems, contributing to neuro-immune and autonomic dysregulation.

Part of our work involves helping clients review environmental reports, interpret exposure data, and identify potential sources of environmental stressors, bridging the gap between environmental findings and symptom patterns so individuals can better understand what their body may be responding to.

Non-Environmental Triggers

Similar patterns of dysregulation can also develop after infections, injury, surgery, major stress, or other physiological events. While the initial trigger may differ, these pathways often converge on the same regulatory systems, including mast cells, immune signaling, and the autonomic nervous system.

In these situations, the focus shifts toward understanding the body’s regulatory response and supporting stabilization.

Regulating the System After Exposure

When regulatory systems remain on high alert, functions such as heart rate, circulation, digestion, breathing, and sensory tolerance can fluctuate. This is why conditions such as MCAS, POTS, CIRS, MCS, and ME/CFS often overlap.

Our work focuses on helping individuals determine whether environmental triggers remain active, guide steps to reduce or remediate exposures when needed, and support nervous system stabilization once the primary driver has been addressed.

How New Leaf Neuro Can Help

-Helping identify environmental triggers, understand symptom & flare patterns, & support nervous system regulation. Your symptoms aren’t random.

-Your body is not failing.

These symptoms often represent a protective system that has become overly reactive. When you understand the patterns and respond consistently, the system can settle .

Meet the Founders

Co-Founder and Lead Program Consultant - New Leaf Neuro

Liz McGhee

Co-Founder | Environmental & Neuro-Immune Autonomic Consultant

Liz is an Environmental Health Scientist and Registered Sanitarian (RS) with more than 25 years of experience in environmental health and public health. In addition to her work evaluating environmental exposures such as mold, indoor air quality, and other environmental stressors, she has also worked in the area of nervous system regulation, helping individuals understand the patterns that influence symptom stability in conditions such as MCAS, POTS, and related dysautonomia.

Co-Founder and Program Director - New Leaf Neuro

Pascal Boudreau

Co-Founder | Environmental Systems Engineer

Pascal is an Electrical Engineer and licensed Professional Engineer (P.Eng.) with over 30 years of experience in systems analysis and building systems. He brings expertise in indoor environmental conditions and moisture-resilient construction practices that help reduce mold risk in the built environment. At New Leaf Neuro, Pascal applies an engineering framework to understanding how environmental exposures, physiology, and nervous system regulation interact.

The Next Step

-You deserve clear explanations, not confusion or dismissal.

How Your Symptoms Connect

In conditions such as MCAS, POTS, CIRS, MCS, ME/CFS, Long COVID, Lyme and related neuro-immune or nervous system regulation disorders, symptoms may be influenced by changes in nervous system signaling.
When the nervous system remains in a prolonged “on” or protective state, it can affect immune activity, circulation, digestion, and other body functions.