I had mono a while ago. I got over it pretty quick because I really took care of myself. My mom's friend gave me this stuff that's supposed to help your liver or something, I didn't really understand it but I think it probably helped. It was called monobrex, I think, if anyone's interested.
The only thing to be worried about is being out of the loop for a few weeks--as long as you take care of yourself.
You need to eat really healthy, lots of raw vegetables and fruit (raw as much as possible, steamed second best, then frozen, canned is the worst) because raw food has a ton of vitamins, trace minerals, lots of stuff your body needs every day but especially now.
If you go to the doctor the only thing they will do is tell you to go home and stay in bed until you feel better, because mono is a virus and there's no cure, antibiotics won't work (infact, they're really bad if you have a viral infection, they make the infection mutate or something because they dont' work).
Anway, eat really well, drink a lot of water and get lots of rest. If you try to keep your energy up and stay active it will get worse (you probably don't even feel like doing that anyway).
You have to be sure to not do anything until you feel better, even if it's a while. A lot of people try to get back too soon and end up getting chronic mono, which means it reoccurs frequently and sometimes that leads to chronic fatigue syndrome...Bad stuff
so take care of yourself and enjoy the opportunity to relax and be pampered!