Saw something hovering over the tree line behind my house last night and I can't stop thinking about it

That feeling of not being able to stop thinking about it is actually really important and I don't think people give it enough credit. The mind locks onto something for a reason.

I'm in the Pacific Northwest and we get a fair amount of unusual stuff over the tree lines here, so I've started paying closer attention to these kinds of reports. What direction were you facing roughly, and what time did it happen? Even approximate is useful. The duration matters a lot too - something that just drifts past is a very different situation compared to something that holds position for any length of time.

Also worth noting whether there was any sound, or specifically the absence of sound. A lot of accounts people share here mention an unusual quiet that comes with it, which is one of the details that sticks out to me in multiple independent reports.

You should write everything down now while its fresh, even the stuff that seems irrelevant. Details fade faster than people expect.

@NorfolkHawk 100% agree on that point. There's something almost biological about how the brain fixates when it's witnessed something it cant categorise. I've had two encounters that still play on my mind years later and honestly I think thats the mind telling you "no, this was real, don't rationalise it away."

Where in the Pacific Northwest are you? That whole region has a fascinating history of aerial sightings and I'd love to hear more details about what you saw over the tree line.