Am I Just Paranoid?

I was on a call with one of my closest friends, and her sister started talking about hearing stomping on the roof, that got louder and faster, then abruptly stopped. Then they started talking about the spirits that lived in their house, third eye stuff, communicating with them, and I got a Little little bit scared.

Then I started to hear something like she described. I looked outside, checked the bedrooms, and I couldn't hear it anywhere else but my bedroom, and it was loud. Like... Think of it like someone knocking on the floor, but it has a walking pattern to it. Then it stopped, but then it sounded like someone fell, then a quiet groan. Then it went silent again. And I started to shiver and I teared up. Once I calmed down, I heard the groan again. I got up, and checked the bedrooms again, my younger sister was still sleeping, as was my Mother. My Father doesn't live with us, so that was out of the question. And I live above a store, but it wasn't open on the weekends, so that was out of the question once again. At the time I heard the 'stomping' I was in my closet, (being strange,) and that's when the conversation started up.

I told my friend everything that went down, and she said I'm probably just paranoid. I laughed it off but I'm still shook. I was shaking even after the conversation stopped, and I can't convince myself that it was just a fragment of my imagination.

Am I just paranoid, or is there someone or something living in the roof? We have no attic, but we have vents in the ceiling. Was it possibly just an animal? Or supernatural?