u/Expensive-Account102

so ages ago i saw a massive spider crawl across my bedroom floor and had sworn I killed it but then I saw it again and it crawled behind my bed but when we checked underneath and everyhwree around my bed it was nowhere to been seen but it’s was clear snd day infront of my thick, and gangly it had to be real but my dad got worried about it cause i wouldnt step back into my room until I saw it again but he said it wasn’t there and I was imagining things. is this a literally brain glitch?