Not a doctor, but I'm wondering if his Crohn's disease hasn't complicated the course of the mono. I'm guessing maybe his treatment for the Chron's may have been delayed or changed due to the mono diagnosis, which might have affected his ability/desire to eat. If this report is real and he wasn't eating and is now, I'd take it as a very good sign that he's well down the road to being back to full speed. Hoping he maybe sits Saturday, gets in a bit on Wednesday, and is back to full speed by the Fresno game.
GO POKES!