Noisy pipes

My 2 story house is about 22 years old.
This morning I was on the first floor while my wife was washing up on the second. The pipes were pretty noisy; more than I remember hearing before.
This concerns me because 2 years ago I replaced some ceiling tiles in the basement and found that a 20' run of pipes had pulled free of all the pipe hangers and was just shaking around. I reinstalled better hangers and it seems fine, but it worries me about the plumbing quality in general.
I don't know much about plumbing, but presumably the pipes upstairs run though holes in joist and can't move around much?
Should I be concerned about the noise? Is there anything, other than ripping up the floors and walls, to be done about this?
Thanks.
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22 years ago a few builders started using floor trusses instead of joists, sometimes only on upper floors. In that case, the pipes would be using the same poorly installed hangers. Unlikely but possible.

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