Lately I've been dealing with a ton of stress, all at once, including a lot of significant changes that have been going on, and I'm not the type of person to take changes well, and it's caused my appetite to decline significantly. The stress has made me feel sick to my stomach most of the time, so when I do eat, it's not much because my stomach can't handle it. Yesterday I had a small handful of Honey Nut Shredded Wheat at breakfast, and then 3 or 4 hours later I got a pretzel (one of the large soft ones) and I couldn't even finish that, I ate maybe half of it. And then right before I went to bed I was absolutely starving because the last thing I had ate was the pretzel, so I ate a granola bar. So now most of the time when I'm feeling hungry I just drink water because it's the only thing that doesn't make me feel sick. Right now I'm eating a little bit of cereal but I'm starting to feel sick again. What do I do?