Hi. This is a very typical problem you have developed - of bile like menstrual flow. It is just possible that you have got a fistula betwwen the upper intestines and the uterus. This can happen in cases of Endometriosis / Tuberculosis/ Gallstone getting eroded into the uterus and all such possibilities. Most important is : Get admitted as you need an observation and intraveous fluids and antibiotics. Examination by a Gynecologist and to collect the sample for showing bile into the vaginal discharge. Ultrasonography, barium studies to show of a possible fistula and to plan accordingly. The vomiting, diarrhea and cramping needs a regular treatment with antibiotics and supportive medicines , probiotics and all.