I have this same exact problem. I've been told I smell like rotten eggs, sewage and poop. It is socially crippling. There are certain things that make it worse, for example, if I have an alcoholic drink, eat beans/hummus, bananas, chocolate, fried foods or drink lemon water and certain teas. I would say the alcoholic drinks are the worst for me - after 2 minutes of consuming a drink I emit the odor and it's just continuous from there (with several comments of "who farted").

Another odd thing is when I have a cold or sinus infection, the smell is absolutely horrendous....it fills a room and people can smell me from many feet away.

The crazy thing about all of this is that I can rarely smell it. There was a time when I went back in my car after being out of it for a couple of minutes and I smelled it then.

Some other info - my tongue is always a light white color with white chunks in the back. I've had a two candida tests (a swab from my tongue and one from a stool analysis), but they were negative.

I'm pretty sure this is related also - my thumbs and pointer nails have beaus lines (horizontal grooves). Recently had blood work done and I'm not deficient in anything. My doctors do not know what they are from (asked my regular doctor and dermatologist about them). Also, my hair became very thin and is always shedding.

Digestion related issues: I sometimes have heartburn and am constipated occasionally.

Some other background info - a year ago I was tested positive for SIBO and I was treated with Xifaxin for two weeks. The smell never went away. I believe I do have some sort of dysbiosis (maybe hydrogen sulfide dysbiosis), but I think it's a different bacteria than what was tested when I was tested for SIBO. The test results showed an increase towards the end of the test (which I have read can be a false positive).

My life is a nightmare because of this. It makes me depressed and literally not want to do anything. Going to work everyday or doing anything socially is a struggle. I'm on a mission to solve this. I'm going to order a stool analysis test and will hopefully gain some insight into what's going on. If I come across any answers or anything that helps, I promise I will post it here.