Thanks @Land_Ark I am 99% recovered, and I just need to avoid certain drugs going forward. Provided I don't take the wrong thing for an ailment, the condition just makes me more interesting to the medical staff of any organization. Not a great thing, but not a bad one I guess.
It totally changed my life, and it makes me want to avoid health problems for others. That's in general, and in this case, maybe Toyota's Hybrid (sorry) PFI/GDI setup is the way to go?
From what I have read, most of the issue with soot is from the result of incomplete combustion from DI engines. Fuel and air doesn't mix as well in DI engines, as they don't have the time to mix like PFI systems that atomize fuel in the intake manifold.