Thank you lynn. I'm pretty sure I don't have mono. I don't have any of the symptoms, except for fatigue, but I always feel fatigued, so that's not really new. The mass on my kidney is called something that starts with an n, but i have no idea what it is. My cancer doc told me once, but he also said it might not be that. All I know is that sometimes I get stabbing pains in the general right kidney area, but they're not frequent. They did a biopsy of it last year, and they ruled out cancer, they just check it now to see if it's grown. And yes, I'll answer the phone, the GI doc called me earlier, but I missed the call, so I'm waiting to hear back from them now.