The thyroid is a small gland at the base of your neck. It produces hormones that regulate your metabolism, energy levels, body temperature, heart rate, mood, and much more.
Virtually every cell in your body depends on thyroid hormones to function properly. When the thyroid isn’t working as it should, you feel the effects all through your body.
For the thyroid to do its job, hormone production needs to stay within a healthy range. When it produces too little (hypothyroidism), the body’s processes slow down. Energy drops, weight balloons, and everything from digestion to mood to cognitive function starts to feel sluggish.
When it produces too much (hyperthyroidism), the body runs too fast. The heart races, anxiety spikes, sleep becomes difficult, and weight drops. Both conditions disrupt your quality of life and can develop gradually enough that the signs are easy to dismiss.
If any of the signs below sound familiar, see a specialist for a thyroid assessment. At ARA Integrative and Functional Medicine in Glen Mills, Pennsylvania, Dr. Rina Kapoor can identify what’s going on and develop a treatment plan that addresses the root cause.
Here are five signs your thyroid may be out of balance and what each means.
Fatigue is one of the most common complaints in people with thyroid imbalance. You can sleep eight hours and wake up feeling no more refreshed than when you went to bed. Your energy is low, motivation is hard to find, and tasks that used to feel manageable are a real effort.
This type of fatigue is most strongly associated with an underactive thyroid. When thyroid hormone levels are low, the body’s energy production slows, which is why sleep doesn’t fix it.
Unexplained weight gain is a classic sign of an underactive thyroid.
When thyroid hormone levels drop, metabolism slows, and the body burns fewer calories at rest. People gain weight despite no significant changes to their diet or activity level, and find it unusually difficult to lose weight even when they make an effort.
On the other hand, losing weight without trying, despite eating normally or even more than usual, points toward an overactive thyroid. Hyperthyroidism accelerates metabolism to a degree that burns calories faster than they can be consumed.
Low thyroid hormone levels are closely linked to depression, low motivation, and a general flatness that doesn’t respond well to the usual things that improve mood.
Brain fog — difficulty concentrating, trouble retaining information, a sense that thinking is slower than before — is another common symptom of hypothyroidism that significantly affects daily functioning.
An overactive thyroid tends to cause the opposite. Anxiety, irritability, restlessness, and difficulty settling the mind are common in hyperthyroidism, along with difficulty sleeping.
People with an underactive thyroid feel cold persistently. They have cold hands and feet, have difficulty warming up, and are sensitive to cool environments that other people find comfortable.
An overactive thyroid causes excessive sweating, feeling overheated in normal temperatures, and heat intolerance that makes warm environments uncomfortable.
An underactive thyroid can cause the heart to beat more slowly than normal and contribute to constipation. An overactive thyroid does the opposite, causing a rapid or irregular heartbeat, palpitations, and loose stools or frequent bowel movements as digestion speeds up.
Heart palpitations, in particular, are a symptom that requires prompt attention. While they can have other causes, palpitations alongside other thyroid symptoms, such as unexplained weight loss, anxiety, and heat intolerance, are a sign that thyroid function urgently needs evaluation.
The thyroid affects so many body systems that when it’s out of balance, symptoms rarely point to a single cause. Fatigue, weight changes, mood shifts, temperature sensitivity, and changes in heart rate or digestion can all have other explanations, which is why proper testing is essential.
If any of the signs in this article sound familiar, request a consultation online or call our Philadelphia-area office at 610-358-3300 today to get a proper assessment.
