I had same problem, it sounds like you may have a bacterial over growth in your gut. I was recently diagnosed Jan.2, 2018 with bacteria overgrowth. I believe I had parasites in my intestines. I took Neem tablets and olive leaf tablets &cloves. I also took 20-50 billion of probiotic (ultimate flora probiotic). Niacin the flush kind about 1000mg-1500mg. Break it down 500mg at a time 3 times a day. Niacin cleans the toxin, skin etc... out of the body. Also, chlorophyll liquid once a day in the coffee or water or juice. I also took charcoal tablets that cleans out the toxin in your body. I first took the B12-1000 mg or more. Zinc up to 440 mg a day. Magnesium 1000 mg a day. My body odor cut down 80%. Every once in a while I smell like poop and burning rubber. So, I would double up on the probiotic total 60 billion a day. So,.i went to the doctor, and I wish I had went first before I spent all that money on the things I've mentioned. But, it was worth it it, because 80% of my odor was gone. But when I are fast food and sweets, the odor comes back full blast stronger. This is day 2 that I had been taking medication my doctor prescribe to me xifaxan 550mg. So far 95% odor gone. I'm so happy, I'm getting my life back now and people are not complaining about fart/poop odor, praise the Lord!!!!! My advice is go see your doctor to rule.out bacteria overgrowth and.parasites. Next, have a.GI test to see what's in the gut and intestines.