Just my imagination?

Last night we (me, Adrian, Adam and Logan) came back in from a nice evening out together and as Adam walked in the door in front of me, I stopped and stammered, trying to warn him of a fairly large brown spider in the doorway. He was unfazed, but I stood outside the door until Adrian came to my rescue, but now the spider was nowhere in sight. I quickly went in the door, creeped out, but okay. Then, during the night I had to get up to go to the bathroom and felt a spider web on me. Remembering the spider event earlier, I was a little freaked out and thought perhaps there might be a spider in my hair and so I quickly brushed my hands through my upside down head, trying to knock out any spiders that might he hiding there. (A little bizarre, but I felt safer.) I went back to bed and when I got up this morning, again I felt a spider web across my arm and just thought how odd! But, I thought maybe it was just a hair or something and then to my horror I looked down and there at the edge of my shower was a fairly large, well, okay, probably medium, dark brown spider that looked like the one in the doorway last night! Now....did I just think about that spider in the doorway and then in my sleeplike state during the night and this morning, feel a little tickle and let my imagination run away with me and assumed it was a spider web...or did I have a spider in my hair making webs around me all night?