Smoke/rotten egg/sewage/??? body odor

I've had this very strong and pervasive odor since I was about 17. I've heard it described a variety of different ways. Sometimes it's a smoky smell...almost like a freaking fire. Most days it is either a smell of raw sewage or gas/feces. I have never run into anyone else who smelled like this. It's messed up because I am a clean person, cleaner than most anyone I know, but the smell persists! WTF is this? The only thing that I can think of is...well I can't think of anything. I would say that it is the result of the colostomy I had when I was an infant, but I don't see why this would cause the smoky odor. I know the smells are not in my head, because I've had roommates, co-workers, and even people that I do not know comment on them (behind my back most of the time). It's gotten so bad at points in my life that I have contemplated suicide, and attempted it once. The messed up part is that when I was in the F'ING hospital after my attempt, I heard the doctors and nurses snickering and joking about "how bad it smelled" in the room I was in...believe me, if there were a gun in the room I would have been sure to do it right the second time. I have lost jobs because of it, and my social life is a total wreck. Some days, (like today) I can't even bear the thought of waking up in the morning and going to school or out in public. Every time I see someone walking towards me on the street I cross the street, for fear of them sniffling, coughing,or making a snide, underhanded and/or cruel comment as I walk past. I actually became an atheist because of it. The way I see it, if there were a God, he would know how difficult it is to be born this way and have to deal with it in a cruel world like this. Sorry for being so negative, but I had to vent, as I've NEVER discussed this before, and I happened upon this site today. I was actually at the end of my rope. If I did not find this site (or a similar one)I had it in my mind to jump off of a bridge that is close to where I live. I figured the only thing that people would miss would be the stink. Sorry for rambling, but this in itself kind of relieves the anxiety and torment that I am experiencing.