It could be something as small as Gerd, or it could be something related to allergies. When my allergies to dairy act up, my stomach gets bad but also i get a ton of mucus build up in my tubes and it causes pressure pain in my chest. My asthma inhaler usually helps remove it or if it doesn't have pressure, musinex does well.
You can also get it from being around chemicals a lot or by smoking.
Hi
Thanks for writing to the forum!
Chances are that you have esophageal reflux (GERD), where the food in your stomach is thrown up into your food pipe or esophagus. Another possibility is hiatal hernia, where a portion of stomach herniates into the chest cavity through the diaphragm. Omeprazole is a good drug to combat this. Along with it you can try over the counter antacids. Avoid heavy meals. Avoid too much of caffeine, tea, fried food and drinks both alcoholic and non alcoholic fuzzy ones. Avoid heavy exercises within 4 hours of a heavy meal. Raise the head end of the bed by pillows to 30 degrees. Go to bed at least 2 hours after food.
I would strongly recommend you to see a gastroenterologist (a specialist who looks after the diseases of our digestive system). It is difficult to comment beyond this at this stage. Please let me know if there is any thing else and do keep me posted. Take care!