Household mold is not only unsightly but can cause allergic reactions, respiratory problems, and other symptoms. Chronic headaches or migraines can be symptoms of various other health problems.
In some cases, mold exposure from a malfunctioning HVAC can be the culprit behind frequent headaches.
Can mold cause headaches? Yes. However, there are several other factors to consider if you suspect you have a mold-related illness.
Migraine Vs. Sinus Headache

Breathing in mold spores can irritate your mucous membranes and immune system, leading to headaches, migraines, and other health issues.
Generally, mold exposure causes a sinus headache, which feels like intense pressure on your forehead, nose, and inner ear.
Thankfully, you typically can manage a sinus headache with over-the-counter pain meds.
People often mistake their migraine for a sinus headache. Although they can feel similar, migraines generally have additional symptoms such as:
- Sensitivity to light and noise
- Nausea
- Throbbing or pulsing pain
- Headaches that worsen with more physical activity
Understanding the cause and type of headache you have is crucial for proper treatment. For example, while decongestants help treat sinus headaches, they won't be helpful for migraine sufferers.
When Is Mold Growth the Culprit?

Sinus headaches can be a symptom of allergies, illness, and other health problems. However, you have more than head pains to worry about when mold is the culprit.
How do you know if mold is causing your frequent headaches? Here are some signs that could indicate you have a mold problem.
You Have Allergic Reactions
If you suffer from allergic reactions like runny nose, itchy or watery eyes, blurred vision, coughing, sneezing, or a sore throat, you could be exposed to mold.
Having these symptoms and a sinus headache indicate that something irritates your immune system.
Your Symptoms Are Worse When Indoors
Plenty of people suffer allergies when they go outside during the spring. However, if you suffer from headaches and other symptoms more when you enter a particular room or building, it could signify mold growth.
Mold can hide almost anywhere, including the walls, carpet, and your HVAC system. If you feel worse when walking indoors, check for mold growth.
Symptoms of Mold Exposure
Mold thrives in moist and warm environments. If your HVAC is leaking, it is vital to address it right away to prevent black mold. Mold exposure can negatively impact your health in several ways.
Below are the most common symptoms of mold exposure.
Fatigue
Feeling tired or weak are common symptoms of mold exposure; however, they can also relate to other health issues or a medical condition. While being tired is often the result of poor sleep, fatigue is feeling exhausted for an extended period.
Your doctor will tell you that fatigue alone is not an indication of mold exposure. If you notice that you have a leaking air conditioner, discolored vents, water damage, and fatigue, try treating for mold.
Inability to Concentrate
A doctor will often blame anxiety or diet for poor memory and lack of concentration. Although this is generally an accurate diagnosis, it can also indicate mold exposure.
For example, if your concentration problems occur with skin rashes or shortness of breath, you could be exposed to mold.
Joint Pain
Breathing in mold toxins can cause an allergic reaction to occur. In more severe cases, being exposed to mold can lead to chronic inflammatory response syndrome, which comes with several different symptoms, such as joint pain and body soreness.
Joint pain can be a symptom of various types of health ailments. If you know you have mold in your home, it's worth mentioning to your physician.
They will likely use blood tests to rule out different health conditions and determine the best treatment plan.
Allergies
About 25% of the U.S. population has mold sensitivities. You will likely suffer from irritated eyes and blurred vision if you are sensitive to mold.
Although most people's immune systems can fight off mold toxins in the air, exposure still puts patients at risk of developing asthma or other respiratory issues.
A person exposed to different molds is 30 to 50% more likely to suffer asthma attacks, bronchitis, and other respiratory problems.
So, when asked “can mold cause headaches?” you can answer that yes, that and other symptoms.
What to Do If You Have Black Mold Exposure Symptoms

Your HVAC system has the critical job of transporting air around your home to keep you and your family comfortable.
Unfortunately, certain system problems can cause mold to grow in your system, putting everyone in your home at risk.
If you or another person in your family is suffering from symptoms related to mold exposure, it is critical to consult a doctor as soon as possible.
Since a physician can't use medical tests to diagnose mold exposure, you should have a professional inspect your home.
An HVAC technician will check your heating and cooling units for mold and leaks to determine the best course of action for mold removal.
Can You Prevent Mold Growth?
Preventing black mold is more manageable than removing it. Follow these steps to prevent mold from polluting your home's indoor air:
- Use a Dehumidifier in kitchens, bathrooms, laundry rooms, and anywhere else with water
- Clean up spills immediately and address water damage as soon as possible
- Schedule routine maintenance services for your HVAC system
One of the best ways to prevent black mold from growing in your home is professional duct cleaning.
Your ducts carry air throughout your entire home. If exposed to mold, they can transport those mycotoxins from room to room, putting your family's health at risk.
We know that mold can be dangerous to anyone exposed, especially those with weakened immune systems.
Our air duct cleaning service is an easy and affordable way to prevent black mold and keep your HVAC system working efficiently.
Our technicians use state-of-the-art equipment and safety practices to ensure that your HVAC system and ducts are clean and mold-free.
Related Reading: Why Does My AC Smell?
Related Reading: When To Use a Dehumidifier: Your Essential Guide
Contact the Professionals for Mold Spores Removal
So, can mold cause headaches? Yes, but we can relieve them. Let Air & Energy of NWFL in Pensacola, FL, help you protect your home's indoor air quality.
We offer thorough duct cleaning services to keep your home's air clean and fresh. Call us at (850) 477-7101 to get an estimate today!

This article was written by:
Co-founder and Home Comfort Specialist