I am a 29 yeah old female, 53 and 128 lbs.  Ive had some sort of stomach bug for the last 24 hours (vomitting, diahreah, severe cramping), and havent been able to eat much besides a few saltines.  I went to bed feeling better and knowing that by period would be starting any time now.  I think I have started my period (as expected)  owever, the menstrual discharge doesnt look like the normal blood, it looks more like bile - a yellowish color.  Kind of freaking me out!  Any explaination for that?
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 between 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 intravenous 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.