Food?

So, small issue with Liam, he doesn't think that he needs to eat! Over the past couple of days, Liam's intake has dropped to about 1/2 of what he normally eats. A trip to the Emergency on Monday, and a trip to the clinic today has led to no indication about why this is happening. Both docs that he saw did a bunch of tests (including blood work at the hospital) and nothing showed up. So, I guess these are the joys of being a parent. We've got an appointment with his doctor tomorrow, and hopefully she can give us some help.