Uncomfortable "'~'

I don't know what it is but I'm getting a kinda uncomfortable spooky vibe rn, I smell something fresh with a hint of a chemical sent? My window's open so I could just be the freshness of outside air coming in but I still feel like something's wrong "'~' 

I'm getting really spooked, I think I'm gonna go stretch my legs (Not going outside) for a little bit, might close that window too