Wasn't there last weekend but I did that tour about two years back and honestly the fifth floor wrecked me. Not in a dramatic way, just this horrible heavy feeling like the air had weight to it, and I'm not someone who throws that kind of thing around lightly. My mate thought I was being soft but he's also the same bloke who jumped halfway out of his skin near the body chute so make of that what you will.
What specifically felt off for you? Location matters a lot with Waverly because different parts of the building seem to have completely different energies, if that doesn't sound too airy fairy. The roof is weirdly calm which I always found stranger than the floors that are supposed to be active.
Anyone else notice the way your equipment behaves differently depending on which wing you're in? My K2 was doing absolutely nothing for ages then went mental in the old TB ward for no obvious reason.