That is not normal. You may be rotten inside. I'd have it checked up.
I may be rotten inside. But not physically. But we better don't stress that here.

Nah, I don't think it needs to be checked. (I recently had a colonoscopy; everything's fine.) It's not regulary, but a rare exception. At least so far. Don't know how it may be when I'm 90...
But I could give some tips what to eat if you want the "total fart."
The answer is: it depends.
Even if you meant it as a joke this actually puzzled me. And after doing some research I think I can contradict. Since most of it is some air (swallowed by eating too fast), so neither lighter, nor heavier, and fermentation gas, which mostly is methane, which is lighter than air. The rest is some sulfur compounds, which are heavier than air, yes, and are those who deliver the flavour, but those are too few to carry weight.
So I say all farts are lighter than air.
What do you think/did I miss was heavier than air - except you was talking about "included soil delivered", which was no gas, but something between solid matter and liquid.
Yeah, we're talking about farts here. Like twelve year olds.


This thread is pretty pointless to me anyway.