Dr. Nesochi talks about early signs of mono on Bustle.

11 Early Signs of Mono, Because There’s Probably A Good Reason You’re So Exhausted

If you’re currently sluggishly plodding around, sleeping ’til all hours, and waking up with swollen glands and stiff muscles, you might be wondering what’s up. And really, rightfully so. While many illnesses can cause such annoying symptoms, it could be you have the early signs of mono.

Mono, or infectious mononucleosis, is a virus that truly wipes you out. Also known as “the kissing disease” (since it’s passed via saliva), it causes extreme fatigue, fever, and sore throat. Many people, however, don’t realize they have mono — especially since it often feels like the common cold — and thus go running around for weeks trying to “push through.”

Even if you know you have it, however, there’s not much you can do. “[Mono is] caused by a virus rather than a bacteria, so antibiotics are not effective for its treatment,” says Dr. Mikhail “Doctor Mike” Varshavski, DO, in an email to Bustle.

If you think you have mono, go to a doctor for a blood test. It will likely reveal the Epstein-Barr virus (EBV), which is one of the main causes. Once you get a diagnosis, it’s time to slow down and take care of yourself. Stay in bed, drink lots of fluids, and don’t exert yourself. Read on for some signs it may be time to do just that, so you can (finally) start to feel a bit better.

1. You Feel Beyond Tired

While it’s normal to occasionally feel tired, it’s not as normal to feel exhausted — especially if you still feel rundown after a good night’s sleep. As Dr. Nesochi Okeke-Igbokwe, M.D., M.S. tells me, such an extreme sense of fatigue can be an early sign of mono. If a doctor confirms you have the virus, the best way to treat it is with naps, naps, and more naps.

2. Your Upper Left Abdomen Kind Of Hurts

Has your abdomen been feeling a bit sore? If so, Varshavski tells me it could be related to spleen or liver enlargement, which often swell (and occasionally even rupture) as a complication of the illness. “This is why it is advised to stay out of contact sports/hobbies for at least four weeks after symptoms begin.” Let the Netflix spree (or gentle walks, or yoga) commence.

3. It Hurts To Swallow Because Your Throat Is Sore

While a sore throat can be a sign of the common cold, it can also be an early symptom of mono, Varshavski tells me. If your throat appears to be red, or it feels painful to swallow, go see your doctor to find out for sure.

4. The Lymph Nodes In Your Neck Feel Swollen

How’s the rest of that neck of yours? As Okeke-Igbokwe tells me, you might also notice the lymph nodes around your throat are swollen. As your body tries to fight off the infection, these glands will swell — and it can be pretty darn painful.

5. You Can’t Get Out Of Bed Because You Feel Too Fever-y

If you’ve been shivering away in bed, it might be due to a flu or cold. But it could also be a sign of mono — especially if your fever is particularly high. According to an article on WebMD, your fever may range from 101°F to 104°F, which can lead to an awful case of the chills.

6. You Head And Body Are Aching

Mono can make you feel pretty rundown in other ways, too. Varshavski tells me it can crop up in the form of fatigue, but also body aches and headaches. No fun at all.

7. There’s A Weird Rash Forming On Your Skin

Mono can cause a red measles-like rash in about five percent of sufferers. So if you spot one forming, call your doctor. And remember that some things can make it worse. As Varshavski says, “[It’s] important to note if you get antibiotics, specifically amoxicillin while infected with mono, it’s possible to break out with a worse whole body rash.”

8. You Don’t Really Feel Like Eating

Loss of appetite is one of the main symptoms of mono, according to health writer Shannon Marks on Livestrong.com. Aside from feeling too tired to eat, your “sore throat, swollen neck glands, fever, and weakness in the early stages of the infection can make eating difficult,” she said. While you don’t have to chow down, do make sure you drink plenty of fluids.

9. You Just Don’t Feel “Well”

There might not be any one symptom that’s easy to pinpoint, but you can say without a doubt that you don’t feel “well.” This general discomfort, uneasiness, or ill-feeling can be an early sign, according to health writer Carolyn Sayre in The New York Times.

10. Your Muscles Feel Stiff

While we’re listing crappy symptoms, let’s go ahead and add muscle soreness to the list. According to Sayre, stiffness is one of the more common symptoms of the virus. Besides being annoying to deal with, it should also tip you off that it’s time to hit up the doctor.

11. You Don’t Have Any Symptoms At All

It’s possible to have mono and not even know it, Varshavski tells me. This is especially true in mild cases where symptoms don’t show up, despite the fact you are infected with the illness. In this case, you might go on living without ever knowing you had the disease — unless you were curious and got a blood test. Nothin’ you can do about it.

But if your symptoms are annoying, or you feel like total crap, don’t be afraid to go to the doctor. A simple blood test can reveal whether or not you have mono. If you do, then you can start in on your new, leisurely lifestyle until you feel better.

Learn more at Bustle