Most Helpful Guy
I can only imagine it's miserable.
Take some deep breaths and be mindful of your physiological reactions to this stress. Pay attention to your breathing. Breathe deeply and slowly and focus on a single pleasant image, word or phrase. If you need one: "Dust in the wind." All we are is dust in the wind. :)
Second, you've gotta eat, not eating is a big part of why you feel bad. So hey, what do you like to eat? Go get it. Whoppers? Wendy's Singles? McRibs? Do it up. Or maybe just some ripe fruit. You've got to have the energy.
When you've done those I hope you'll at least feel a bit better. Remember to maintain perspective. I keep photos of galaxies on my computer to look at; they remind me how tiny our entire world is--even our galaxy is tiny in all of Creation. So our problems mean a lot to us, but in the scheme of things, they ain't shit. :)
Good luck and take it easy. :)