Hello, Thanks for the query to H.C.M. Forum. I would come up with these possibilities from your eating habits, these includes. 1 The first possibility is of peptic ulcer disease or hyper acidity ( gastritis). As you mentioned that you ate sweets and got pain. This is an indication that there develops hyper acidity due to greasy or spicy or fried foods. Diagnosis can be confirmed by upper G I endoscopy . Try raising the head of your bed 4 inches with blocks. It also might help to avoid eating or drinking for 2 hours before you lie down. To help control stomach acid one should not drink alcohol or drinks with caffeine in them or eat chocolates or greasy or spicy foods.As same thing happened in your case. Also take some antacid but if symptoms are severe then you may need drugs like proton pump inhibitors. 2 Overeating is the second cause of your stomach pain and cause of over weight . I have noted that on the name of healthy food , usually people eats so much . In my opinion still you feel pain then consult a physician and get his opinion. Good luck. Dr. HET