After 7 to 8 hours normal sleep and before gettingup from bed lot of gas going out from the anus. The gas is odourless(indigestion gas will smell). Quantity is high. (I am otherwise healthy, doing 30 mins exercise per day, etc)
I did endoscopy & had little erythematous mucosa. But doctor confirmed that there is no ulcer. & doctor said it is normal.
This is not due to indigestion. so baeno/carbocaps/gelusil(antacid), Digene all donot work…
You always have gas in the intestines, it is a by-product of digestion and also just air. Different foods increase the amount of gas. Getting up you probably are empty and that increases the amount of air in the tract. Since you have seen a Doctor and had tests I would say go back and ask about a change in your diet or see some kind of nutrionist or dietitian about your diet. And I do not think that the fact it does not smell really means anything. If you eat certain foods, cabbage, broccoli, something like that there is more smell.
When you say you had endoscopy and it showed no ulcer, do you mean just an upper endoscopy or EGD (esophageal-gastro-duodenoscopy)? Or colonoscopy of your lower intestines? The problem sounds like it is coming from the colon, not the stomach or duodenum, which is where "ulcers" usually are, although there can be ulcers in the colon, especially in a condition called "Ulcerative Colitis."