Hi....I am a 44 yr old woman! Ive been feeling very, very tired lately, with chest discomfort and sometimes pain in my chest.  I burp  a lot too!  I notice that these symptoms come more after I eat.  I am a smoker.  I informed my doctor and she made me pass a stress test for my heart, everthing was good.
Thanks for your question on Chat Doctor. I can understand your concern. By your history and description, possibility of HERD (gastroesophageal reflux disease) is more likely. HERD is due to laxity of gastroesophageal sphincter. Because of this the acid of the stomach tends to come up in the esophagus and cause burping, chest tightness, pressure etc. Smokers are more prone for HERD. So first stop smoking immediately. Start pantoprazole and levosulperide combination twice daily on empty stomach. Avoid hot, spicy and large meals. Avoid stress and tension, be relaxed and calm. Go for walking after meals. Don't worry, you will be alright with all these but first quit smoking. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.