Hello According to your query , this portion is epigastrium and you are feeling hollowness , burping , gassy feeling . All these symptoms may be due to hyper acidity or gastritis , so these measures may be useful for you . Try raising the head of your bed about 4 inches with blocks. It also might help to avoid eating or drinking for 2-3 hours before you lie down. To help control stomach acid once should not drink alcohol or drinks with caffeine in them or eat chocolates or eat greasy or spicy foods . Don t eat pizza, burger , fried food with excessive condiments . Also take some antacid but if burping severe with gas formation you may need drugs like pantoprazole-d once or twice in day . 2nd reason of such feelings may be due to incomplete indigestion . So take some enzyme preparation . Tension or anxiety are other reasons of such symptoms so be careful about these reasons . A 40 minutes morning or evening walk also help in such condition . With these measures you will feel better within 7-10 days . But if no improvement within this period then consult a physician and get his opinion . Good luck.