Why You Should Check Your Physical Health Before Starting Mental Health Therapy

Note from Sierra: While I am a Licensed Master Social Worker, the information in this post is for educational purposes and reflects my personal practice philosophy. It is not medical advice or a substitute for a professional diagnosis. If you are experiencing these symptoms, please consult with your primary care provider. Reading this blog does not establish a therapist-client relationship.

Anxiety or Something Else?

Did you know there is one crucial step that people skip over when deciding to start therapy? Many people will spend years in therapy and never realize their mental health symptoms could be caused or exacerbated by vitamin deficiencies, hormonal imbalances, and even food allergies! Many physical health conditions actually produce symptoms that replicate mental health conditions. Personally as a therapist, I have seen numerous clients that have been misdiagnosed with anxiety, depression, bipolar, etc. due to physical conditions. Having one’s bloodwork and annual physical should be seriously considered before starting therapy. It has helped catch so many issues that individuals could have spent years struggling with, thinking that it was only “mental health” related. 

Here are some of the common physiological conditions that can cause mental health symptoms. 

Hormonal and Glandular Issues

The thyroid is a small gland in the neck that acts as the body’s control center for energy and mood. If the thyroid is underactive, a condition called hypothyroidism, it can cause feelings of deep sadness, constant tiredness, and slow thinking that looks exactly like clinical depression. If the thyroid is overactive, known as hyperthyroidism, it can cause a racing heart, shaking hands, and intense nervousness that feels like a panic attack or general anxiety. Other glands, like the adrenals, can pump out too much stress hormone, making a person feel constantly “on edge” even when nothing is wrong.

Lack of Essential Nutrients

The brain requires specific vitamins and minerals to create the chemicals that regulate our emotions. If you are low on Vitamin B12 or folate, you might experience memory loss, confusion, or a very low mood. Vitamin D is another essential nutrient that helps the brain function, and a lack of it is closely linked to seasonal depression. Low iron levels can lead to anemia, which leaves the body and brain without enough oxygen. This often results in “brain fog,” extreme exhaustion, and a lack of motivation that is frequently mistaken for depression.

Food Allergies and Sensitivities

The connection between the gut and the brain is very strong. When you eat something you are allergic or sensitive to, your immune system views that food as a threat and attacks it. This attack creates inflammation throughout the body. These inflammatory signals can travel to the brain and interfere with “feel-good” chemicals like serotonin. This can cause sudden irritability, “brain fog,” or mood swings. In some cases, undiagnosed food sensitivities can cause a person to feel hyperactive or lose focus, which can be misdiagnosed as ADHD.

Blood Sugar and Organ Function

The brain relies on a steady supply of sugar for energy. If your blood sugar is too high or too low, such as in undiagnosed diabetes, it can cause rapid changes in your personality, including anger, confusion, and crying spells. Additionally, the liver and kidneys are responsible for filtering toxins out of your blood. If these organs are not working correctly, waste products can build up in your system and affect your brain, leading to agitation, personality changes, or a general feeling of being unwell.

Final Thoughts

If you are thinking about starting therapy, the first step you should consider is meeting with your primary care provider to discuss routine blood work. Ruling out any underlying physical conditions could save you months or even years from struggling with symptoms that could be fixed through the care of a primary doctor. I will always advocate for individuals to start therapy, but it is always a good idea to take a step back and make sure there isn’t anything else putting your body under stress! 

I hope you enjoyed today’s topic! As we go into the new year I hope this blog will be a safe space for you to explore your faith and your mental health. I always enjoy hearing you guys suggestions and life updates so please make sure and leave a comment below! 

Also! As we go into the new year, I am starting a daily mental health devotional challenge! Every day I will be posting a mental health reflection based on God’s word. I hope you will invite a friend and join me everyday in 2026 for this challenge! 

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I hope you have the best and most blessed day ever! 

Sierra Stratman MSW LMSW U/S Phd Student at Liberty University