Hi,
Welcome to health care magic,
All these symptoms of stomach pain and mid back pain could be due to
stomach upset which in turn needs further evaluation.
Stomach upset is likely due to
gastroenteritis or
irritable bowel syndrome or
acute gastritis but here there is no need to worry as it can be cured by medications and diet.
You should go for routine blood tests and stool examination with ultrasound abdomen if not done previously.
Meanwhile,you should take antacids (
pantoprazole) available over the counter with antibiotics (ofloxacin with ornidazole) and symptomatic treatment.Your nearby GP may prescribe it.
Avoid oily,spicy and non-veg foods for at least 3 to 5 days and must not take alcohol.
You will feel better within 3 to 5 days of this medications.
For excess bleeding you should see some nearby gynecologist for further evaluation.
If symptoms persists then see gastroenterologist who may advice you upper GI endoscopy and will give you further advice accordingly.
Regards,