Conditions > Mast cell activation

Long COVID & Vaccine Injury

When recovery isn’t happening like it should, you deserve more than wait-and-see. We specialize in what others overlook.

Overview

Whether you’re still struggling months after a COVID infection — or you began experiencing new, confusing symptoms after vaccination — the frustration is real. You’ve probably seen multiple doctors, been told “everything looks normal,” or even questioned whether your symptoms are related at all.

At GAIN, we understand that post-viral syndromes and vaccine-related injury are real, complex, and often dismissed. We help patients find answers, get relief, and feel seen — not sidelined.

What We Treat

We support patients with:

Long COVID (Post-Acute Sequelae of SARS-CoV-2)

Vaccine-related immune dysregulation or injury

Post-viral syndromes impacting multiple systems

Overlap with conditions like POTS, MCAS, or chronic fatigue

These conditions are real — and recovery is possible with the right tools and support.

Common Symptoms

Ongoing fatigue or post-exertional crashes

Brain fog, memory issues, or concentration difficulty

Shortness of breath or chest tightness

Heart palpitations or exercise intolerance

Dizziness or lightheadedness when standing

GI dysfunction or food reactivity

Sleep disruption

Joint pain, nerve pain, or tingling

Unexplained allergic or histamine responses

How GAIN Can Help

Dr. Jones has been at the forefront of treating complex immune conditions long before the pandemic — and he’s now helping patients navigate the lasting effects of COVID and vaccine-triggered immune shifts.

At GAIN, we:

Take a full-body systems approach to post-viral care

Screen for and treat associated conditions like POTS, MCAS, or dysautonomia

Use evidence-based therapies combined with nutritional, lifestyle, and pharmaceutical tools

Personalize treatment plans based on your triggers, patterns, and goals

Offer compassionate care that validates your lived experience

You’ll never be told it’s “just anxiety” or that “it will pass.” We’re here to investigate and support recovery — step by step.

Why Patients Choose GAIN

Expertise in immunology, dysautonomia, and inflammatory syndromes

One-on-one, unrushed appointments

Care that’s available in person or via telehealth

Plans tailored to complex, overlapping conditions

No referral or insurance approval needed

A provider who believes you — and has helped others like you recover

You’re not imagining it. You’re not alone. You’re not without options.

If you’re still sick — weeks or months later — we can help.

Book a consultation today.

You deserve to be heard
You deserve to be heard
You deserve to be heard
You deserve to be heard
You deserve to be heard
You deserve to be heard
You deserve to be heard
You deserve to be heard
You deserve to be heard
You deserve to be heard
You deserve to be heard
You deserve to be heard
You deserve to be heard
You deserve to be heard
You deserve to be heard
You deserve to be heard

Your Healing Journey Starts Here

Book your consultation with Dr. Doug Jones and discover the relief you deserve today.