I had mono and i didnt even know it?!?!?

its possible. maybe the symptoms did not show up yet. or you had it as a kid (had cold symptoms is milder for young kids).

Mono is contagious, which means you can spread the virus to other people who haven't had mono before. Even though you can get mono from kissing someone infected with EBV, there are other ways you can get it, but they all involve contact with saliva. Sharing pillows, straws, toothbrushes, or food from the same plate can also spread mono.

At first, people usually don't feel sick after getting infected with the EBV virus. So someone could have mono — and be spreading it — and not even know it. That's why it's important not to share things like forks, straws, water bottles, or lip gloss at school.

And if the person feels tired and run down, it's the body's way of saying more rest is needed.

If you play contact sports, such as football and basketball, you will probably need to avoid them while you're sick and for about a month after the illness — especially if your spleen is enlarged. Your doctor will let you know when it's safe for you to get back in the game.

You'll probably be happy to hear that mono usually goes away after a few weeks, even though you'll have to take it easy for awhile. Make sure you wash your hands after you cough or sneeze. Keep your straws, forks, and toothbrushes to yourself, and . . . no kissing for a few months!