top of page
< Back

Hashimoto Thyroiditis

Hashimoto is an immune pattern, not just a thyroid problem. We look upstream at the gut, triggers, nutrients, and inflammation that drive the antibodies.

Thyroid and Adrenal

What you may be noticing

You feel cold when others are comfortable. Your hair thins, your skin dries, and weight settles in despite effort. Fatigue and brain fog arrive mid-afternoon. Some weeks you feel anxious and wired, others flat and slow. You may already take thyroid medication and still not feel like yourself.

Why it is rarely one thing

Hashimoto is not only a thyroid that slows down. It is an immune system that has begun to target thyroid tissue. Replacing hormone can be essential, and it addresses the output. It does not address why the immune system is attacking.

That is the upstream question. Hormone imbalance rarely originates in the gland itself. It originates in the signaling: from the brain, where the hypothalamus and pituitary set the thyroid pace, to the gut, where much of the immune system is trained.

Thyroid hormone reaches nearly every cell you have. It sets the pace of your heart, your gut, your skin renewal, and your brain. Antibodies often rise years before TSH changes, which is a window to act early.

Patterns we look for

  • Thyroid antibodies: TPO and thyroglobulin antibodies, tracked over time.
  • Thyroid conversion: free T3, reverse T3, and the selenium, zinc, iron, and cortisol balance that conversion depends on.
  • Intestinal permeability and microbiome balance, closely linked with autoimmunity.
  • Gluten reactivity and celiac disease, which overlap with Hashimoto more often than chance.
  • Immune triggers that keep the immune system distracted: Epstein-Barr virus reactivation, mold, and other toxic burden.
  • Vitamin D and selenium status.
  • Blood sugar instability and insulin resistance.
  • HPA axis output, since chronic stress shifts immune balance.
  • Postpartum and perimenopausal hormone shifts, frequent turning points.
  • Brain effects. Low thyroid hormone slows brain metabolism and mood.

How I evaluate it

I use a comprehensive functional neurological exam to see how thyroid status is affecting your brain: reflex timing, eye movement speed, balance, and cognitive stamina.

I read TSH, free T4, and free T3 together, never TSH alone, along with reverse T3 and TPO and thyroglobulin antibodies. Functional labs may also include ferritin, vitamin D, selenium and zinc status, fasting insulin, celiac screening, inflammatory markers, a cortisol rhythm, and comprehensive stool analysis. Thyroid ultrasound and coordination with your prescribing physician round out the picture.

Rapid neck swelling, trouble swallowing or breathing, or a growing nodule need prompt conventional evaluation.

How we address it

  1. Secure hormone sufficiency with your prescribing physician when it is needed. Medication stays in place unless they adjust it.
  2. Remove immune triggers: gluten when indicated, inflammatory foods, infections, and toxic exposures.
  3. Calm rather than stimulate. During an active antibody flare I choose immune-calming, barrier-stabilizing support and avoid approaches that stimulate the immune system, including high-dose iodine.
  4. Repair the gut lining, rebalance the microbiome, and open drainage through bowel, bile, and lymph. The gut comes first, then metabolism.
  5. Restore the nutrients thyroid conversion depends on, stabilize blood sugar, and calm the stress axis.
  6. Reduce neuroinflammation and support brain energy.

We retest antibodies, conversion markers, and how you feel, so the plan follows your physiology rather than a fixed template. When the trigger is found and the immune system calms, the thyroid can steady. Energy, warmth, and clarity follow.

Book your Comprehensive Functional Medicine Eval/Neurological Exam today to discover what the contributing root causes are that are underlying your health concerns.

Related Conditions

Thyroid Nodules

Thyroid nodules are common and usually benign. After proper evaluation, we look upstream at autoimmunity, insulin, iodine, selenium, toxic burden, and the brain signals that shape thyroid tissue.

Cortisol Imbalance

Cortisol follows a daily rhythm set by the brain. We map your full rhythm and its metabolites, then restore it with light, blood sugar, sleep, nervous system safety, and reduced inflammatory load.

Subclinical Hypothyroidism

Subclinical hypothyroidism means TSH is raised while thyroid hormone is still normal. We read the full thyroid picture and look upstream: brain signaling, autoimmunity, gut, nutrients, and stress.

Adrenal Insufficiency Support

Adrenal insufficiency is a medical condition requiring hormone replacement. Alongside your endocrinologist, we support autoimmunity, energy, blood sugar, and nervous system resilience.

Low T3 and Reverse T3 Patterns

Your TSH can be normal while your cells receive too little active thyroid hormone. We read free T3 and reverse T3 as a pattern and address conversion, stress, inflammation, fuel, and nutrients.

Hypothyroidism

Low thyroid function slows every cell, including the brain. We read the full thyroid conversation, from brain signal to cell, and address the gut, stress axis, nutrients, and toxic load upstream.

Dr. Leila Doolittle, Doctor of Chiropractic, smiling in a light blue shirt

Become A Resonance Wellness Insider

Stay Connected

Connect with us to explore wellness topics, with about one new blog or newsletter each month.

Social

  • Instagram
  • TikTok
  • Youtube
  • Facebook
  • LinkedIn

Contact

Address

14850 Montfort Drive, Suite #102

Dallas, TX 75254

Compton, AR

Stay Connected

Request a complimentary phone call directly from Dr. Leila Doolittle to discuss what the best ways are to work together.

© 2026 Resonance Wellness, Inc. | Terms | Privacy

bottom of page