Concerned and confused

He did not cum inside me and stuff but, I remember I had this symptoms last time I took plan b. What's really really weird is that I haven't slept in 3 days, I'm super hot and it's cold af right now. I had nausea and made myself throw up a bit then I felt okay. I also spotted a bit yesterday but, I think it was from my butt and not my vagina and it was just a small dot. I really want my period to come. I have severe acne, sore breasts, I'm tired, some nausea, eating a lot, and that spotting. I'm so scared.