I need help I feel so sick and awful.

[Catherine_Anne]

I'm a 13 year old and over a month and a half I've been getting sick every other week. I start to get light sulfur burps around 4 pm. I wake up around 2 am with a terrible stomachache and awful sulfur burps. The sulfur burps are so strong it feels as if there's a  carbonation and it makes me feel. Along with thAt I get really bad gas. So ill go to the bathroom around 6 am and the 1st night of this I throw up 2x and in the throw up is usually what is ate for dinner. I'll feel a bit better after I throw up but still have a stomachache that is under my ribs with a cool feeling and a feeling of something pushing it together. I also have sounds of something moving in my stomach as if I'm hungrry. I'll go to the bathroom a bit later and have diarrhea. The second night is much worse. More intense stomachache and burps. This time I'll throw up 3-4x. And the same thing happens. I feel way better the next day but about 2 weeks later I know it will vome back. What's wrong with me and plz help bc this sucks n makes me feel so sick and awful.