I had mono about 3 months ago and I feel awful, still. I don't know whether or not to go to the doctors again or if this just happens. To those who had mono, did the fatigue linger forever? I feel like no matter how much I sleep or rest, I am just not myself. I am relatively healthy otherwise.. I eat right, exercise and have general good health. I am just at a loss for what to do because I just feel like absolute shit all of the time and I can't figure out why, and I think it might have to do with mono.