TMI alert, vinegar anyone?

[Peeyoo]

Hi all, is this just one of the weirder things about pregnancy or should I see the doctor?

I'm 31 weeks and have a distinct (but not sharp iykwim) smell of vinegar emanating from my vagina. I think its since DP and I had uncomfortable sex (bloody spd!) a few days ago but im not sure.

I have had on-off thrush throughout this pregnancy. I'm taking a probiotic and have eliminated sugars but not carbs from my diet.

I also have gestational diabetes on top of it all!

Any ideas or just sniggers welcome, ta.

This is also a bit TMI but are you sure it's not just sweat? Is it all the time or does it still smell after a shower? Every morning when I wake up I smell like that but I think it's because the whole pregnancy thing has raised my temperature so during the night I sweat horrendously and it's especially worse between my legs.
If it's definitely not that sorry I'm out of ideas other than to say I think the whole thing changes incredibly during pregnancy; smell, discharge... bleurgh!