Hormone Testing: Signs You Should Get Your Levels Checked

Hormones are chemical messengers that regulate nearly every function in your body — metabolism, energy, mood, sleep, libido, weight, and more. When they're in balance, you feel like yourself. When they're off, even slightly, the effects can be wide-ranging and easy to dismiss as "just stress" or "getting older."

The problem is that hormone imbalances are notoriously underdiagnosed. Symptoms are vague, they overlap with dozens of other conditions, and they're often brushed aside — especially in women. A simple blood test can provide answers that years of guessing cannot.

There's no single symptom that definitively points to a hormone imbalance, but certain patterns are telling. Consider getting your levels checked if you're experiencing:

Energy and metabolism:

• Persistent fatigue that doesn't improve with sleep
• Unexplained weight gain or difficulty losing weight despite diet and exercise
• Feeling cold all the time, especially in your hands and feet
• Brain fog, poor concentration, or memory issues

Mood and mental health:

• Anxiety or depression that came on gradually
• Irritability or mood swings that feel disproportionate
• Low motivation or loss of interest in things you used to enjoy

Physical symptoms:

• Hair thinning or loss (on the head or body)
• Dry skin, brittle nails
• Muscle weakness or loss of muscle mass
• Joint pain or stiffness

Reproductive and sexual health:

• Low libido in men or women
• Irregular or absent menstrual cycles
• Erectile dysfunction
• Difficulty conceiving
• Symptoms of perimenopause or menopause

If several of these apply to you, a hormone panel is a logical next step.

The thyroid gland produces hormones that regulate your metabolism — essentially the speed at which your body converts food into energy. Thyroid dysfunction is one of the most common hormonal conditions, affecting an estimated 20 million Americans, with up to 60% unaware they have it.

Hypothyroidism (underactive thyroid) — TSH is high, T3/T4 are low:

• Fatigue, weight gain, cold intolerance
• Depression, brain fog, constipation
• Hair loss, dry skin, slow heart rate

Hyperthyroidism (overactive thyroid) — TSH is low, T3/T4 are high:

• Weight loss despite normal appetite
• Anxiety, rapid heartbeat, tremors
• Heat intolerance, excessive sweating

A basic TSH test is a good starting point. If TSH is abnormal, Free T3 and Free T4 provide a more complete picture.

Testosterone is the primary male sex hormone, but women produce it too — in smaller amounts. It plays a role in muscle mass, bone density, libido, energy, and mood in both sexes.

Low testosterone in men (hypogonadism) is increasingly common and often goes undiagnosed:

• Low sex drive and erectile dysfunction
• Fatigue and reduced energy
• Loss of muscle mass, increased body fat
• Depression, irritability, difficulty concentrating

Low testosterone in women can cause:

• Reduced libido
• Fatigue and low motivation
• Decreased muscle tone

High testosterone in women may indicate polycystic ovary syndrome (PCOS):

• Irregular periods
• Excess facial or body hair (hirsutism)
• Acne
• Difficulty conceiving

These are the primary female sex hormones, though men have them too. Imbalances are common during perimenopause, after childbirth, and with certain medical conditions.

Low estrogen (common in perimenopause and menopause):

• Hot flashes and night sweats
• Vaginal dryness
• Mood changes, sleep disruption
• Bone density loss over time

Estrogen dominance (high estrogen relative to progesterone):

• Heavy or irregular periods
• Bloating and weight gain around the hips
• Mood swings, anxiety
• Fibrocystic breasts

DHEA is produced by the adrenal glands and is a precursor to both testosterone and estrogen. It peaks in your mid-20s and declines steadily with age. Low DHEA-S is associated with fatigue, low libido, and reduced sense of wellbeing.

Cortisol is your primary stress hormone, produced by the adrenal glands. Chronically elevated cortisol — from ongoing stress, poor sleep, or adrenal dysfunction — can cause:

• Weight gain, especially around the abdomen
• High blood sugar
• Immune suppression
• Sleep disruption
• Anxiety and mood instability

The right panel depends on your symptoms and sex:

For general fatigue, weight changes, and mood issues: Start with a thyroid panel (TSH) and a basic metabolic panel to rule out other causes.

For men with low energy, low libido, or muscle loss: A testosterone panel (Total Testosterone + Free Testosterone) is the logical first step.

For women with irregular cycles, fertility concerns, or perimenopausal symptoms: A female hormone panel covering FSH, LH, Estradiol, and Progesterone gives a comprehensive picture.

For anyone with suspected adrenal issues: DHEA-S and cortisol testing can help evaluate adrenal function.

Yes — for some hormones, when you test matters:

• Testosterone: Best measured in the morning (7–10 AM) when levels are naturally highest
• Female hormones (FSH, LH, Estradiol, Progesterone): Ideally tested on specific days of the menstrual cycle — typically day 3 for FSH/LH/Estradiol, and day 21 for Progesterone
• Cortisol: Morning testing captures peak levels
• Thyroid (TSH): Can be tested any time of day; fasting is not required

If your results are within normal range but you still have symptoms, don't stop there. Reference ranges are population averages — you may feel best at a specific level within that range. Discuss your results and symptoms together with a healthcare provider.

If results are outside the normal range, a follow-up with an endocrinologist, gynecologist, or primary care physician is the appropriate next step. Many hormone imbalances are highly treatable once identified.

At Reliable Exams, we offer thyroid, testosterone, and comprehensive hormone panels — all orderable online without a doctor visit. Results arrive in 1–2 business days from a CLIA-certified lab near you.

Browse hormone tests and take the first step toward understanding what your body is telling you.