Symptoms involving the thyroid, whether they stem from hypothyroidism, hyperthyroidism, or Hashimoto’s disease, reflect the damage to the various systems and organs of the body.

Thyroid Gland

Damage to the thyroid gland affects the body’s metabolic rate. As a result, weight can be gained easily as in hypothyroidism or lost easily as in hyperthyroidism. Hashimoto’s disease can cause both weight loss and weight gain depending on the phase of autoimmune destruction of the thyroid.

Cold hands and feet are related to a low metabolism as in hypothyroidism while feeling hot can be linked to hyperthyroidism. Dry skin is another related symptom to thyroid disorders.

Cardiovascular System (Circulatory system)

The cardiovascular system responds to minimal changes in the amount of circulating thyroid hormones in the blood.

Hyperthyroidism induces a hyper-dynamic cardiovascular state which manifests by a faster heart rate, higher systolic and diastolic function (higher blood pressure), atrial fibrillation, and reduced exercise performance.

Hypothyroidism is characterized by the reverse – a slowed heart rate and lower blood pressure. With lowered thyroid hormones in circulation there is an increased risk of atherosclerosis and myocardial infarction (heart attack).

Insomnia is often associated with hyperthyroidism. Some of the symptoms and signs of hyperthyroidism can make sleep difficult. The stress of having a “racing heart” or palpitations, rapid pulse, and higher blood pressure can cause insomnia. Insomnia can also be related to a decreased amount of serotonin production that is linked to issues in the gut.

Nervous System

The central nervous system can be greatly affected by a thyroid disorder. The central nervous system reacts to both too little and too much thyroid hormones. Too little thyroid hormone causes mental sluggishness or “brain fog” while too much induces anxiety and nervousness. Depression is another symptom that is commonly associated with a thyroid disorder. Hypothyroidism can interrupt normal glucose metabolism which also can cause fatigue, irritability, and light-headedness. To evaluate and treat neurological components of thyroid disorders, we recommend neurofeedback therapy when indicated. To learn more visit

Reproductive System

Hypothyroidism can be related to heavy menstrual flow, miscarriage, and infertility in women. Hypothyroidism can decrease the absorption of progesterone by the body’s cells which can upset the menstrual cycle.

Digestive System

Chronic constipation is a common symptom of hypothyroidism and diarrhea is common in cases of hyperthyroidism. These symptoms are partly due to altered metabolism but also are created by faulty digestion beginning in the stomach. Hypothyroidism can reduce the amount of stomach acid by its effect on the hormone gastrin. When too little gastrin is produced this reduces the amount of hyrdrochloric acid (HC1) or stomach acid. Bloating can result from not enough HC1.

Leaky gut syndrome and gluten sensitivity are often associated with thyroid disorders. Our thyroid patients often test positive for gluten and other food allergies.


Fatigue can result from hypothyroidism and Hashimoto’s disease for several reasons. Anemia is commonly associated with these two conditions and can result in fatigue but there also impaired glucose metabolism and neurological affects that can decrease the body’s energy.

dr-lanzisera-picHello…I’m Dr. Frank Lanzisera, co-author of the thyroid book “What’s Wrong With My Thyroid?“. I’d like you to know that my office is a place you can come for information and help.

I regularly present seminars on thyroid disorders. If you’d like to register for one of these seminars, call (813) 253-2333. Text (813) 455-1077.


Hidden Causes of Thyroid and Autoimmune Conditions

Total Thyroid – 17 Davis Blvd #304, Tampa (adjacent to Tampa General Hospital)


Free on-site parking

Register for complimentary seating at (813) 253-2333

If you suffer with:

  • Hashimoto’s thyroiditis
  • Hypothyroidism
  • Hyperactive thyroid or Grave’s Disease
  • Low Energy
  • Weight Concerns
  • Digestive Issues

If you take thyroid medication yet still experience symptoms or your lab tests are “normal” and you still have symptoms …

Dr. Lanzisera DC, author of “What’s Wrong with My Thyroid?” and frequent television guest doctor, hosts this popular and highly informative seminar.

Register for this informative seminar by calling Tampa – (813) 253-2333 

Our Total Thyroid® Approach begins with one of these 3 Easy Options:

View Our Thyroid Video FAQs

Have questions about your thyroid? These videos will answer your questions.

Schedule Your Complimentary Consultation ($139 value)

Telemedicine or In-Office. Consult with Dr Frank Lanzisera D.C. and our Nurse Practitioner, Lauren DeNeve, APRN.
Concierge style, high quality care.
Call 813 253.2333 for more information.
appt box with woman

Ready To Get Started? Tampa: Call (813) 253-2333; 

Dr. Frank Lanzisera, DC, Chiropractic Physician, will consult with you about the details of your case and perform a thorough physical examination with neurological testing and metabolic assessment. Dr. Lanzisera will review your examination findings with you, inform you if he will accept your case and, if he feels he can help you, give you his best treatment recommendations.

In some cases, you may also consult with nurse practitoner, Lauren DeNeve, APRN.

Dr. Lanzisera applies natural methods to help those with chronic thyroid conditions, working in conjunction with your primary care medical doctor and endocrinologist specialist. When applicable he employs present day natural methods as an adjunct to help improve your condition.

Call or email us to schedule your appointment with Dr. Lanzisera today.

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