Allergy Testing helps with fatigue | Lifelab Testing

Allergy Testing Can Stop You From Suffering Fatigue

Last Updated: 10th November 2022 · Written by Donna Mastriani

Food allergy testing is often only given when there is a clear indicator that it is needed.  Particularly when teens or adults, where it’s commonly thought that the danger of an allergy developing has passed.  However, allergy testing isn’t just required when a child, teen or adult has an anaphylaxis-related reaction.  Sometimes it’s simply a bloated stomach or even fatigue.  There is no “one size fits all” for a food allergy, which is why education is important.

How allergies relate to fatigue

Since we know that a food allergy occurs when your body’s natural system starts to protect itself from what it perceives as a threat (ie: the allergen), fatigue is actually a really common symptom of a food allergy, though it’s often ignored and attributed to other issues. 

As your body fights the allergen, the same hormone that is released to fight it, also makes you feel tired and hazy.  Similar to when you are overtired.  It can also keep you from sleeping well, if the allergic reaction occurs near bedtime.  This difficulty sleeping is also made worse by the fact that the same hormone can cause swelling in your nose, making you feel stuffy, which makes it hard to have a good night’s rest as well.

Examples of fatigue related to allergies

Fatigue and its connection to allergies can be felt in a few ways.  Here are some examples that you may have found in your everyday life that, until now, don’t really have a clear reason for happening.

  • Constant fatigue: If you feel like you are always ready to pass out from fatigue in the afternoon or evening, it could be due to something that you’re eating in a meal.  While slight fatigue is normal after a large meal, a traditional meal shouldn’t make you feel like you’re exhausted after it.
  • Difficulty sleeping: If you’re waking throughout the night or waking in the morning still feeling really dragged out or tired, it could be due to an allergen that is pushing those fatigue levels higher as well as keeping you from slipping into a deep sleep throughout the night.
  • Feeling fogged or hazy: Difficulty concentrating or simply feeling “hazy” or “out of it” is another version of fatigue that is often caused by a food allergen.  If you are struggling to stay on-task or focused on a conversation, this form of fatigue could be something to consider in terms of the root cause.

What to do

In fighting the reaction, the best thing that you can do is to take an allergy test.  This will help you figure out just what is triggering the fatigue so that you can avoid it.  If you accidentally ingest it, you’ll find that taking an anti-histamine can help curb the worst of your symptoms and get you back to your life as normal.  Allergy testing can help you beat fatigue for good.

For more information on battling fatigue and dealing with this annoying symptom, you can log on to and see how we can help!

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