Was it a dream or not?

So last night I woke up at about 2am to pee. I checked my phone to see what time it was and when it lit up I fucking swear I saw a giant spider on my pyjama T-shirt. I started yelling, got out of bed and took off my clothes. Then I started crying and ran into my mum‘s room telling her that I woke up with a spider on me. (We‘ve been having a little spider problem for a while, I used to have 2 spiders last year in my room but they were on the wall and they didn‘t really bother me as long as they were just hanging there) She comes with me and we start looking for the spider in my bed, but we didn‘t find anything. She tells me that maybe I just had a bad dream and got so counfused because I‘m sick (That‘s true I‘ve been really sick for the past week) My mum went back to bed and of course I couldn‘t fall asleep again so next day I went to school like a dead zombie. So what do you think? Was I just having a weird dream or was there a really a spider in my bed?