Listen to your doctor, first and foremost. Mono can run up to 6 months long, during which your internal organs are swollen and at a much higher risk than normal of rupturing. Intense physical activity is not the best idea given these conditions. But me personally, I'd go insane sitting around idly for months on end.
Idle? Hey, there's always freeping. That's got to be okay, right?
Yes, but I agree. I can't sit still all the time, even if I'm on FR.
And I used to really like to exercise, especially in the martial arts....can't do that any more....
One kid I talked to said he was well in two weeks, with mint teas and health alternatives like that. I haven't tried that yet....