Charlie has been vomiting ever since he ate last night's fast food for breakfast. What could be a possible cause of his emesis?

What cause sickle-cell disease?

Wayne, age 27, calls the doctor’s office to report abdominal pain and cramping, “funny-looking” diarrhea, nausea, and vomiting. He asks what antidiarrheal medication he should take. He also says he has always worried about developing Crohn disease, which he remembers his grandfather struggling with, and that his great-grandfather had colon cancer. What do you tell Wayne to do? What screening questions do you ask him? What conditions might the doctor think most likely, and why?

What are side effects of leukaemia?