I'm just joining this group and noticed your posts. As many have said, you are not alone. And, while I hate that you have to deal with this, I'm a bit relieved to know someone else is trying to sort out symptoms that seem incredibly similar to mine. To the best of my ability, my GI and funky breath issues began shortly before or after my arrival in Honduras in 2005, while serving in the military. Like you, I have had multiple tests and procedures with similar remarks like it must be your IBS, etc. My dentist couldn't find a reason, although I've had gum recession. This is likely due to over brushing in an attempt to remove the foul taste in my mouth. Within a few minutes of brushing my teeth, my mouth tastes like it never happened, to the point that I have absent-mindedly brushed again, Like you, I have wondered about parasites, especially given the location I was in. My labs come back negative. With the exception of occasional low blood glucose, everything seems "normal", which is exceedingly frustrating. I will update this post if I come across anything that may help. I wish you and others all the best as we try to figure out the reasons for this life-altering condition.

I am experiencing the exact same problems. For about 8 years now. I just went to the dentist a month ago. Nothing there is causing it. My dentist said there are three things that causes bad breath. Gums, nasal or stomach. The ent found nothing. Actually I have been to several ent doctors. Also several dentist. I’ve had several CT scans with contrast. They found nothing. I recently visits doctor who ordered blood test for amalayse. (I hope I spelled it correctly) It’s an enzyme that is made by both the pancreas and salivary glands. There is something about my saliva that I just can’t seem to figure out. It seems this is where the problem is. After finding out about the elevated enzyme she ordered an ultrasound of my abdomen. The results showed a dialated pancreatic duct in the distal portion. And a fatty liver. The doctor said it comes from eating too many carbs. My body does not seem to digest carbs and sugar. I am waiting on a CT scan . My insurance company denied it. So my PCP is sending me to a Gastroenterologist. Hopefully they will approve it. From what I have read on google. A dilated duct could be a tumor. Also high risk for cancer. When the duct is blocked the digestive enzymes are not released. I have always said my food is not digesting properly because can smell everything eat. My poop smells very bad. The smell is also coming through my nose. I know for sure it is in my nose and throat. My breath can fill up a room. It has a fecal/sour smell. I’m not sure if it is coming from my body. I have heard vitamin b2 may help. It is Riboflavin. I will keep everyone posted. I will have a phone conference on April 23 due to coronavirus. I hope to have the scan as soon as all this is over. My doctor just got my results from the sibo test. I hope to get those this week. Good luck.

I too suffer the same issues, breath that smells like feces, I had co workers tell me it’s smelled like a dead rat also and surprisingly caught a whif of it myself. After a couple weeks of nose rinses and some antibiotics cream to nasal the dead rat dissipated but the feces smell remains unfortunately I cannot smell it out here do. Like you guys I tried everything including fasting for a week in daytime only eating dinner started on a Sunday- Friday experiment ( this seamed to help I believe not sure as not everyone is vocal enough to say it smells like sh*t). I couldn’t keep that up for long as I felt week. I done some research and I am currently trying to detox the liver in hopes of cleansing the blood. My diet will remain the same but I will try to reduce foods that can cause high levels of yeast production in mouth. I believe the issue might be due to blood contamination and perhaps in lungs but they can also be correlated. Drinking Hepagaurd, lots of water with grapefruit seed extract and Yogi detox teas. Let’s see what happens... anyone else have any feedback please let me know.. this is very depressing as my work requires me to be social and speak with others daily.