Replaced mine once, as previously stated, any movement replace the bearings. But you'll need a press to get them out, it's not a DIY job for most, but you can take the drum/bearing assembly off and take it to a workshop for them to do it.
Bearing nuts are single use, some do re- use them and get away with it but it's not the recommended approach.
Torque is vital on re installation and applying 290Nm or 214 ftlb accurately is quite some effort with normal tool. Oh and check it after 30 miles.
IIRC, when adjusting the brakes, never rotate backwards, always in direction of travel.
Only two things are infinite, the universe and human stupidity, and I'm not sure about the former --- Albert Einstein