It doesn't seem like anybody knows what the answer is to this.
I'm having the same symptoms, decrease in appetite, and stomach aches after eating. This has been happening for a few weeks. It isn't major or anything, and doesn't happen only when I eat certain foods. Just small stomach aches after every meal. Also it seems like I've been prone to getting hurt. Anytime I bump something, even just slightly it hurts very badly. Just the other day I hit my side and it felt like I was being stabbed. My sides have been hurting frequently too, not a certain one... both of them pretty much. I don't know what's going on. I could see a doctor, but I don't have very good insurance so I don't want to pay for it unless I absolutely have to.