Top 10 Signs Your Thyroid Isn’t Working Properly

Your thyroid is a small gland in your neck, but it has a BIG job. It helps control your energy, weight, mood, and more.

When your thyroid isn’t working properly, your whole body can feel off.

For many people, they don’t even know their thyroid is the problem.

Here are the top 10 signs your thyroid may not be working properly:

1. You’re Always Tired

Even after a full night’s sleep, you still feel wiped out. A slow thyroid can make your body feel like it’s running on empty.

2. You’re Gaining Weight (and Can’t Lose It)

If the scale is going up and you haven’t changed your diet, your thyroid might be to blame.

3. You Feel Cold All the Time

It seems, other people are fine…but you’re constantly wrapped in a blanket. A low thyroid can slow your body’s ability to stay warm.

4. You Have Brain Fog

It’s hard to focus, remember things, or think clearly. This can be a big sign of thyroid trouble.

5. Your Mood Is Off

You feel down, anxious, or not like yourself. Thyroid hormones help regulate your emotions.

6. Your Hair Is Thinning

Hair falling out or thinning eyebrows—especially the outer third—can mean thyroid issues.

7. Your Skin Is Dry and Itchy

A sluggish thyroid slows skin cell turnover, leaving you with dry, rough skin.

8. Your Periods Are Irregular or Heavy

Your thyroid plays a role in hormone balance, which affects your menstrual cycle.

9. Your Digestion Is Slow

Constipation is common when the thyroid isn’t working properly.

10. You Have Trouble Losing Weight Even with Diet and Exercise

If you’re doing all the right things and still not seeing results, it might be your thyroid.

What to Do if You Can Relate to Any of These Signs

If you have some or all of these signs, ask your practitioner for a full thyroid panel—not just TSH. Functional medicine doctors look deeper to find the root cause of why you don’t feel well. With their help you can start to feel better again.