See your doctor. You need to be examined by a professional to answer this. You might get info. That will do you more harm than good posting symptoms on the internet.
What is causing this? (Details in answer)
Stomach and intestinal issues are far too difficult to "armchair" diagnose .. It could be something as simple as food poisoning or the flu or some sort of virus .. Or it could be something that needs medical attention ... If it troubles you .. Go and see your doctor
http://patient.info/health/gastroenteritis-in-adults
Usually clears up in 24 hours---if not, talk to a doctor or pharmacist.
What is causing this?
I had diarrhea all through the night and bitter tasting burps. I just got out the toilet with a huge round of diarrhea, but my stomach still hurts from the belly button and below. I have emetophobia which is the fear of throwing up, so I'm really scared. What is causing this? Will I throw up? I also don't have a fever.