Hi... anybody?

I'm in a curious situation right now, and even though I searched a lot, I still don't understand what's happening to me, or at least to my vagina.

Since almost a week now I have weird discharges coming from my vagina, they're brown (but aren't spottings), and it's a bit like they were mixed with my usual white and translucid discharges...

The first time I noticed them were after making out a little bit with my boyfriend. I wonder, is it old blood?

But why is it coming down now? And why is it still leaking?

Earlier today, by curiosity and concern, I put a finger in my vagina and then put it in my mouth, to taste (don't judge), and... that was super weird because it was sour, and usually it isn't at all!

Maybe I'm worrying for nothing, but I clearly don't understand all this.

Do you have an idea of what it could be and why it is there, like that?

Thanks, I need help.