I don’t know what to do

Last night I was at a nye party and I was super high on ecstasy but I felt really safe with everyone around me so I didn’t feel uncomfortable. But the problem is is that I don’t really remember much. And when I woke up this morning my vag felt really numb and somewhat throbbing not totally noticeable. And when I went to the bathroom I had some spotting but not a period just a few spots in my underwear. I just don’t know what to do because I absolutely don’t remember anything. I’m not sure if I should take a plan b pill JUST IN CASE or whatever. Can someone please tell me if I’m over reacting or something?

Thankyou x

EDIT: I would like to add as well that I was still peaking when I went to bed so I was having crazy vivid dreams as well and some were just crazy and some felt so real I thought they were happening and one of them was a sex dream so like?..