If you’re feeling tired, experiencing tingling and numbness, or dealing with joint pain, you might have a B12 deficiency. And you’re not alone—many people between the ages of 45 and 65 experience these symptoms. But don’t worry, there are steps you can take to reverse any negative health effects.

1. Fatigue

Feeling tired all the time? B12 is essential for energy production in our bodies. Without enough of this vitamin, our bodies don’t get the oxygen and energy they need. If you’re also feeling lightheaded, it could be a sign that you’re not getting enough B12.

2. Tingling and Numbness

If you’re losing sensation in your hands and feet and experiencing a tingling sensation like pins and needles, it could be a sign of a B12 deficiency. Make sure to ask your doctor for a blood test to determine the cause.

3. Joint Pain

Severe joint pain that can’t be explained by injury or chronic inflammation, such as arthritis, might be cause for concern. B12 deficiency has also been linked to slower reflexes, so be aware if you’re experiencing any of these symptoms.

4. Rapid Heartbeat or Breathing

Shortness of breath, heart palpitations, and a rapid heartbeat have all been associated with B12 deficiency. If you’re unsure, it’s always better to get it checked out by a healthcare professional.

5. Weakness

In one case study of severe B12 deficiency, a man had trouble walking due to the weakness he experienced. Muscle weakness, balance problems, and staggering could all indicate a problem with B12 levels in your body.

6. Jaundice

If your skin or the whites of your eyes have a yellowing appearance, it could be a sign of jaundice, which may indicate several serious medical conditions. This is another important reason to seek medical attention if you suspect a B12 deficiency.

7. Swollen Tongue

Some patients with B12 deficiency experience inflammation of the tongue. Other signs related to the mouth include a smooth tongue and a decreased sense of taste. If you notice any of these symptoms, it’s best to consult with your doctor.

Remember, if you experience any of these seven signs of B12 deficiency, it’s important to seek the attention of a healthcare professional. A simple blood test can determine if you have a deficiency. Being aware of sources of B12 and ensuring you and your family are getting enough can help prevent potentially serious medical complications.