what does the body odor smell like?
have other people mentioned it, or do only you smell it?
Sometimes strong odors can be associated either with diet (i.e. if you eat a lot of garlic or asparagus) or genetic disorders which do not allow the body to break down certain chemicals. I would suggest genetic testing in this case.
Also, showering with Hibiclens, if not already done so, is beneficial and using deodorants like Drysol.
Then in this case I would suggest genetic testing to see if you have any enzyme deficiencies.
You would need to see a genetics specialist. They would know the exact tests to run, as to this kind of medicine gets very complicated.