Megosztott hang

I have not told anyone this yet. Not my sister, not my coworkers, nobody. I am only posting here because I genuinely do not know what else to do and I have not slept properly in about three weeks. I moved into this house in March. Nothing special about it. Single story, older neighborhood, the street is quiet except for Thursday mornings when the garbage truck comes too early. I took it because the rent was decent and I was tired of apartment living. That is it. No gut feeling, no weird vibe whe