to both of you, i would go to the doctor right away. it could be any number of things. seriously i could name 20 right off the bat. none of them are good. go see a GI doc, or at the very least your family doctor. you want to be sure that you don't have a Gastro Intesinal bleed thats filling your stomach up with blood. a simple blood test and ultrrasound can tell you a lot!
i have been experiencing almost the exact identical thing!
if you find out please tell me because i am concerned :(
thank you!
xx