Hi am new here. But I completely understand what everyone is going through. I have had this problem for over 20 years. I also have been to countless doctors and had colonoscopy, endoscopy, ent has done a cyst scan , I have been to several dentist. One doctor says it is dental and the dentist says it is sinus. Ent says they don’t see anything that can be causing the problem. My breath smells like poop. Even when breathing through my nose people can smell it. When I walk into a room people start to sneeze and cough. I know sugar and carbs makes it worst. I have soooo much gas and I burp a lot. I think the gas gets trapped in my body and starts to eliminate through my pores and lungs. I had real bad lower abdomen pain below my navel for years off and on. I thought it was vaginal pain. My obgyn ordered a vaginal ultrasound and she said it was gas. I was so shocked at just how long it had been there. So I recently had another episode with bad pain in my lower abdomen and lower back. Doctors could not find anything. My obgyn said the same nothing. So two nights ago I started to pas excessive amounts of gas and I started to burp a lot. So I had a flash back and remembered when the first time and was told that it was gas. So the only thing I can come up with is that gas is trapped in the body and comes out in the lungs. But how do I resolve this problem because it has been going on for years. I also have a white coating on my tongue. Sorry for such a long post. I will post any new information that I find. Oh yeah when my obgyn told me that the ultrasound showed excessive gas in my abdomen she told me to take probiotics which I started but couldn’t tell a difference. What I will try is giving myself an enema first. I want to clean out my system. Then start a healthy diet with probiotics and digestive enzymes. I think dehydration is an issue as well. I notice a difference in how I feel when I sip on pedialyte. I will keep you guys posted. Good luck!!👍🏿