it's not likely std related. continue to follow up with your providers to try to get better answers.
I have had gonorrhea and chlymidya done both came negative and the stools and diarrhea came right after contact my skin seems to be more ok looking in heat and the coldness just makes it res an irritate like no other any points you can think of what this could be
this is not the doctor's forum - you have to pay to post there.
did you have any std testing done at all yet?
foul smelling stools and diarrhea are not due to std's.
see your regular provider for your symptoms for further work up. if they aren't able to figure out what is going on, see a GI specialist.
grace