Hello,
Welcome to ehealthforum and thanks for writing
According to the symptoms described by you as stomach pain after fatty food intake,nausea,chest pain,vomitting it is indicative of gut issues as:
1)GERD or Reflux Oesophagitis -- It should be relieved by intake of antacids.Endoscopy is the best diagnostic method to rule out.
2) The symptoms you are complaining can be due to Gall bladder Stones or even inflammation called Cholelithiasis/ Cholecystitis. They are commonly associated with belching, indigestion.
3) Stomach or Duodenal Ulcer- The pain is related with food intake
4) Enlarged liver - It can be ruled out with Ultrasound of abdomen.
Relax as it does not seem to be anything cancerous.The simple measures that are likely to help you are-
1.Certain foods, such as cauliflower, broccoli, cabbage, brussels sprouts and legumes (beans) may worsen the symptoms.
2.Dietary fiber may lessen symptoms.You should drink plenty of water, and avoid soda, which may cause gas and abdominal discomfort.
3.Exercise is good and you can continue with it.
4.Drink lots of water.
5.Avoid fatty,oily food intake.
Kindly wait for the reports so that treatment can be started accordingly.
Take care!