Our downstairs neighbours are lovely - we aren't close, but always say hi and make a bit of small talk. They've never said anything about the noise levels proactively - I've asked a few times and they've said things like "oh we can barely hear anything," "I'm sure we're much worse," or "the banging door was quite bad but we can't hear it since you got it fixed."
In spite of this, I live in a constant state of paranoia that we are too loud and that they secretly hate us. Reading mumsnet probably isn't very helpful in this respect, but still, they must hear quite a bit given how old the building is, and based on previous conversations.
We don't play loud music, host parties, or do jumping exercises, but I've become paranoid about doing "normal" activities as well. It doesn't help that I have a slightly antisocial work schedule. If I get home late or have an alarm go off early, I am wracked with guilt the next morning, and dread seeing them because if it. Having friends over for dinner practically feels criminal - although of course the neighbours in question have never even said anything! I'm quite a noisy and chaotic person however hard I try not to be, and I'm probably annoying them in some way or other.
I know I should probably just get on with my life, but I feel so inconsiderate doing anything that's not ultra-quiet. Anyone else? What do we do?