definitely go and be seen and get basic testing done. this is more likely bv than anything else but you might also have yeast going on too. covering your bases for std's is also a good idea since you want to protect your future fertility.
grace
... forgot to tell you that you def need to be seen by a physician/clinic about this and you need to be treated for whatever is going on down there.
Good luck let us know what they said.
Hello
WOW, you think "something crawled up there and died." Let's hope that is not the case.
It would be rare that this is indeed an STD as your last exposure was a year ago. Of course you've had this for over 4 months now, so we can't really say. But the timeline does look encouraging for you that its not STDs related.
Here are things that it come to mind and are not STDs per say.
Bacterial Vaginosis, and yeast infection.
You should also test for chlamydia and gonorrhea via urine test just to be on the safe side and rule those out.