If you’ve ever experienced a debilitating migraine before, you probably know how to detect the inevitable signs: nausea, sensitivity to light, throbbing pain, and a whole other host of symptoms that can sideline you for at least a day.

But a migraine isn’t the only type of headache that can take over your life and wreak havoc. Sometimes a garden variety type of headache can turn out to be something more serious than initially believed.

That’s why it’s so important to talk to your doctor if you’ve experienced any of these seven types of headaches, just to rule out any potential underlying health issues. It’s never too late to take charge of your health!

1. Thunderclap Headache

This intense headache comes on strong and within minutes reaches maximum pain levels. Although some thunderclap headaches can last only a minute, according to the Mayo Clinic, others can last up to a week. These types of headaches are serious and usually indicate some type of bleeding in the brain or recurring condition. See your doctor right away if you are experiencing this type of headache.

2. Tension Headache

This common type of headache feels like a band is tightening around your head. Although it’s common, if you continue to have these types of headaches, there could be an underlying health issue.

3. Headache Associated With Ruptured Aneurysm

Get to an emergency room right away if you have any of the symptoms commonly associated with a ruptured aneurysm: sudden extreme headache, blurred vision, vomiting, stiff neck, confusion, drooping eyelids and seizure.

4. Sinus Headache

Pressure in your cheeks, pain in your forehead and throbbing behind your eyes are the main symptoms of sinus headaches. Often confused with migraines, sinus headaches aren’t accompanied by nausea or sensitivity to light. People tend to have stuffy noses, too.

5. Cluster Headache

Cluster headaches are cyclical, can come on suddenly, and last for months with throbbing pain behind one eye. However, they are not dangerous despite their longevity and intensity. Medication is available for treatment of these types of headaches.