Help! Drinking Water Gives Me A Headache! (Know The Facts)

Do you suffer from a lot of headaches?

Do you drink a lot of water throughout the day?

Are you the type of person who often complains, “Drinking water gives me a headache!”?

If any of this sounds like you, then you’ve come to the right place.

In this article, we’ll give you all the information you’re looking for about what might be causing you to get a headache from drinking water.

You’re not the only person this problem affects, and you’re also not doomed to have a headache every time you try to get healthier by drinking plenty of water, either. Below, we’ve got a quick rundown of this issue and the factors that may be contributing to the problem, too. You’ll be able to check out this list and see for yourself if there’s something you change about the way you live your life or drink your water that could make a difference in your headaches.

Don’t forget that, if this is a new problem and especially if the headaches are very severe, you should bring it up with your healthcare provider. Your body could be telling you about a different, underlying problem, and it’s a good idea for your doctor to rule this out before you start making drastic changes otherwise.

However, it’s perfectly normal to get headaches from drinking water even if you don’t have another health problem going on, so don’t worry. This is likely just an issue you can get under control by making a few small changes.

Read through our information below and you’ll be better able to make a decision about your body—and your headaches, too.

Factors Contributing to Headaches from Drinking Water

how much water should i drink

Again, remember that getting a headache from drinking water is not always a cause for concern, and many people experience this without any serious underlying causes. However, it’s a good idea to understand all the potential risks associated with this situation. Below, we’ve listed a few possible causes that could be leading to your water-related headaches. Check them out and see if you can pinpoint the cause that may be leading to your problem. This is not an uncommon issue, but it is one that you should pay attention to.

Here are a few factors to keep in mind:

1. A Lack of Electrolytes?

  • You may just need some more electrolytes in your system. If you’ve recently been working out or doing manual labor and you drink water afterward, you may notice a headache. This is usually the throbbing type of headache, but it could be just about any variety. When this happens after exerting yourself, it’s sometimes a sign that you need some electrolytes back in your system. You can have your water with a little sea salt and lemon in it to naturally restore electrolytes, or you can drink electrolyte water to improve your body’s condition in no time. Stay away from Gatorade if possible, since the sodium and sugar may make your headache worse.

2. Sudden Water Consumption While Dehydrated?

  • If you’ve been dehydrated and suddenly drink a lot of water, it can cause a headache. If your body has been suffering from a lack of nutrients and hydration and you suddenly intake a lot of water, it may cause everything to feel a little out of whack until it becomes regulated once again. This is normal, and if this is what’s going on, it should pass in a very short amount of time—usually within a half hour or so. This is one of the many reasons why it’s crucial to stay hydrated when you’re doing anything that causes you to work up a sweat. If you notice this going on with you, sit or lie down until it passes and you should be fine.

3. Migraines Triggered by Water?

  • If you suffer from migraines, cold water may be a migraine trigger. Not everyone who has migraines has the same triggers, but extremes in temperature—even of food or drink—can be one. Many people who have migraines find that drinking ice water exacerbates the pain of an existing migraine or encourages one to begin. If this is new for you, then you should bring it up with your doctor. However, if this has been going on as part of your migraines for your whole life, it’s likely nothing to worry about and is just something you should try to avoid doing until your migraine has passed.

4. Hyponatremia?

  • Hyponatremia can cause this problem. Hyponatremia is a condition that occurs when you don’t have enough salt in your body, and this is a very serious condition that you should be aware of. If you’re dieting and cutting back on sodium while also increasing the amount of water you drink every day by a lot, there’s a chance this could happen to you. When this condition occurs, it means your brain grows larger than your skull can handle, and the pressure from this increase in the size of your brain leads to headaches. It can also lead to brain damage and death in very extreme, untreated situations.
  • If you notice that your water headaches are accompanied by vomiting, confusion, irritability, or trouble walking, get medical treatment right away. You will probably need an IV for fluids and other necessary minerals to help restore the balance in your body and get everything back to normal.
  • This condition is reversible if you seek treatment.


As you can see, there are many different potential issues that could be leading to your headaches when you drink water. Most of these issues are harmless and can be avoided if you change the amount of water you drink in a day or go with a different water temperature instead. These harmless causes can be rectified without much concern, and when you start making the appropriate changes to your lifestyle, you’ll notice your headaches lessening almost right away.

headache after drinking cold water

But can this be a sign of something serious? As we’ve gone over above, it is possible that headaches from drinking water can be a sign of a very serious condition called hyponatremia. If you think you may be suffering from hyponatremia, get to an emergency room or to your healthcare provider right away, as you will need to be treated to get back to normal again. This can be a life-threatening condition, but it doesn’t have to be if you seek treatment quickly enough.

And don’t worry—many times, people who have water-related headaches never experience this condition at all. It’s just a good idea to be aware that it’s possible and to know what the other signs and symptoms can be. This way, you’ll be ready to deal with any issue that may be going on with your body.