Right, now this is entirely different to the window scenario. Sound really doesn't travel well upwards in apartment buildings. Music, sure. Usually the bass travels well. But, voices don't travel up through floorboards. At the most you might hear muffled voice like sounds if they were talking loudly.

If you can hear them talking about you clearly or anything, then that just isn't happening.

Are you still in touch with that friend who was supposed to help you with your clearing up? Could they come & see what they can hear. I really think having someone verify what is, or isn't going on is important.

You say you can tell the difference between real and hearing voices, but the stark truth is, not if you've lost insight. I've heard voices that are as real as day that were hallucinations. Voices of people I recognize.

There's honestly no way you can judge if what is going on is real or not. I know it's all very real & distressing to you, but when you suffer from something like schizophrenia, it's a distinct possibility it's a relapse.

I'm saying this because I care about you. Perhaps we are not in a situation to judge what is going on, but quite possibly neither are you...