A slow thyroid story is not a fast one
Hypothyroid symptoms tend to slow daily life. You may feel cold in a room others find comfortable, gain weight without a clear change in food, or fight constipation and dry skin. Hair can thin. Cycles can become heavier. Thinking may feel padded, and a nap does not fix it.
Hyperthyroid symptoms run the other direction. Heat bothers you, your heart races, your hands tremble, and weight can drop while your appetite rises. Sleep breaks. Bowels loosen. Anxiety can show up as a body feeling, which is why a heart and thyroid check belongs with your physician, not only a stress label.
Why TSH alone can miss your question
TSH is a pituitary signal telling the thyroid how hard to work. It is a useful screen, and it is not the whole conversation if you still feel cold, wired, or exhausted after being told the number is fine. The question you asked was about symptoms. A single signal from the pituitary may not answer it.
Free hormone levels describe what is available to tissues. Antibodies ask whether the immune system is involved. Reverse T3 asks whether hormone is being shunted aside during illness, calorie restriction, or heavy stress. FRI orders that wider look when your story does not match a one-line result.
What belongs on a full thyroid panel
A thyroid panel at FRI can include TSH, free T3, free T4, reverse T3, and thyroid antibodies. Each item answers a different question. TSH is the pituitary request. Free T4 is the hormone the gland releases. Free T3 is the more active form. Antibodies point toward an immune pattern.
Those names are not a score you pass or fail in this office, and FRI does not invent a private reference range. Results are read next to your heart rate, temperature, cycle, bowel pattern, and energy. Advanced bloodwork may add iron, vitamin D, or glucose markers when fatigue has more than one suspect.
Medication stays with the prescribing physician
If you already take thyroid hormone, dose changes belong to the clinician who prescribed it. Drs. Sani Kohen, D.C. and Tara Kohen, D.C. will not tell you to raise, lower, or stop that medication. Functional Medicine here can organize the panel, the history, and nutrition questions your prescriber may want to see.
Functional medicine at FRI does not replace a primary physician, endocrinologist, gastroenterologist, or mental health clinician. If nodules, a racing heart, or eye changes are part of the story, those need medical evaluation. You can also read how Hashimoto's thyroiditis differs when antibodies are the main finding.
What to expect when you are seen for Thyroid Dysfunction
A complimentary 20-minute consultation is the first step if you want to know whether FRI is the right office. Care is out of network. HSA and FSA cards are accepted, and a superbill is available when you submit a claim. The schedule is Monday–Thursday, 9–6.
Expect a history of energy, temperature, bowels, cycles, and prior thyroid results before any kit or blood draw is chosen. You review numbers in plain language. Nutrition may shift. No visit here rewrites a prescription.
Insurance and coordination
Many Irvine employers offer HSA or FSA accounts. Those cards work here. We are still out of network and we still give a superbill rather than billing your plan directly. Lab work is quoted before it is ordered. We will not tell you to stop a medication from your Irvine physician.
Drs. Sani and Tara Kohen lead the clinic. Training details are on the about page. If you want to see the rehab gym before you drive the 5, use the office page.
Business parks, village trails, and a city built for sitting
Irvine's villages do not share a body. Woodbridge and University Park are older loops and pools. Turtle Rock and Quail Hill have more grade. The Spectrum and the Great Park are newer and more spread out. The job, for a lot of patients, is a campus along Jamboree, Barranca, or the Irvine Business Complex: long meetings, a badge, and a walk that is only from the garage. Neck, upper back, and headache complaints often start there. Knee and hip complaints often start on the village trails people use to undo the job.
We do not treat Irvine as a single activity level. A cyclist on the San Diego Creek trail and a software lead who has not exercised since a move from Woodbridge need different exams. Neck pain and headaches are common desk presentations. Hip and SI pain shows up when someone adds mileage fast. Say which village and which campus.
South on the 5 or the 73 from Irvine
From central and north Irvine, I-5 south toward Mission Viejo is the simple drive. From the south villages and from many business parks, the 133 to the 73 toll road is often cleaner. About 12 miles. Twenty minutes is realistic off peak. Thirty-five is realistic when the 5 is slow through Lake Forest. The office is 26400 La Alameda, Suite 100, Mission Viejo, CA 92691. Building parking. Monday through Thursday, 9 to 6.
Irvine patients are used to efficient clinics. This one is deliberately less efficient. An exam takes time. If you need to be back on Jamboree for a meeting, book a morning visit and leave a buffer. Phone (949) 312-1754. The 20-minute consultation is the right first step if you are shopping for a style of care rather than ready for testing.
Questions patients ask
Should I stop my thyroid medication before testing?
Do not stop or skip thyroid medication for a lab unless the prescribing physician tells you to. Stopping on your own can make you feel worse and can distort the very panel you hoped would clarify things. FRI coordinates the timing questions with that prescriber. Bring the dose, the brand name you were given, and the last results you have.
What if my TSH is normal and I still feel slow?
That is a common reason people ask for a wider panel. Free T4, free T3, reverse T3, and antibodies can show a pattern TSH did not describe. A normal screen does not erase your symptoms, and an extra lab does not automatically mean you need a new drug. Your physician still decides on medication.
Can a fast thyroid feel like anxiety?
A racing heart, tremor, heat, and broken sleep can feel like anxiety even when the driver is thyroid hormone running high. That possibility deserves a medical check, not a guess. FRI does not treat anxiety disorders. If worry is the main problem, keep your mental health clinician involved while thyroid questions are sorted.
Do you adjust my dose from these labs?
No. Dose changes stay with the prescribing physician or endocrinologist. FRI can explain what TSH, free T3, free T4, reverse T3, and antibodies are asking, and can talk about food, iron, and sleep as context. Functional lab testing here does not replace the person who writes the prescription.
Related care for Irvine
Thyroid Dysfunction is handled at the Mission Viejo clinic, not in a satellite office in Irvine. The related pages below stay on that same visit and add the methods or neighboring problems that usually come up in the history.
- Irvine chiropractor
How people from Irvine reach 26400 La Alameda and what the three pillars cover.
- Thyroid Dysfunction clinical overview
The non-geographic condition page, if you want the clinic-wide explanation without the drive.
- Functional Medicine
The pillar this problem sits in at Functional Restoration Institute.
- Hashimoto's Thyroiditis in this city
Hashimoto's thyroiditis is an autoimmune pattern in which immune activity is directed at thyroid tissue. Antibodies can be high while you still.
- Hormonal Imbalance in this city
Hormone symptoms rarely live in one gland. Cycle changes, thin sleep, temperature swings, and uneven energy often reflect how sex hormones, cortisol,.
- Chronic Fatigue in this city
Persistent exhaustion that does not match your effort deserves a careful look, not a single explanation. FRI does not offer a specialty.
- Brain Fog in this city
Losing a word, rereading the same sentence, or feeling mentally padded is an experience, not a disease name. Sleep, thyroid pace, glucose.
- Thyroid Panel
A thyroid panel at Functional Restoration Institute can include TSH, free T4, free T3, reverse T3, and antibodies. Each one answers a.
