What's wrong with me? D:?

Yesterday I was horribly nauseous, and a few hours after I ate chik fil a, I puked. Afterwords, I had the shakes and was extremely cold. I took a nap, and when I woke up, I was sweaty and very uncomfortable. I fell asleep at 6, woke up at 12 am, 5 am, 6 am, and then laid in bed till 8 am, took a nap till nine, and had some yogurt for breakfast. It was obviously not a good night's sleep. Today, I am severely and constanly nauseous with a throbbing headache that faded around noon. After I ate corn for dinner (I was hungry, but had absolutely no appetite) I had awful diarrhea that has been going on for five hours now, and I go about every ten minutes. I feel so drained and tired, and sitting up straight is a chore. I constanly burp and have foul smelling gas. When I go to the bathroom, my diarrhea sounds like I'm peeing. I'm a thirteen year old virgin, so pregnancy is out of the question. I took a few different medicines throughout the day for neousea but none of it worked. My tummy hurts terribly and makes extremely loud popping sounds. Im very bloated, and my cheek bones look a little swollen. Please help? :(