Thanks for your question on Healthcare Magic.
I can understand your concern.
In my opinion, you should immediately
consult gastroenterologist and get done clinical examination and upper GI (gastrointestinal) scopy to rule out bleeding from stomach or
esophagus.
You are having hemetemesis (vomiting with blood). And gastric ulcer is the likely cause for this.
Your all symptoms
chest pain, vomiting etc are also suggestive of
gastritis and gastric ulcer.
So better to consult gastroenterologist and get done endoscopic examination of stomach.
It is therapeutic also in stopping blood.
Endoscopic measures like glue, banding etc are helpful in stoppage of blood.
Also do following things for better symptomatic relief. Avoid hot and spicy food. Avoid stress and tension. Take
pantoprazole tablet on empty stomach.
Don't worry, you will be alright.
Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.