The is normally an indication of worn rod or crankshaft bearings, especially if it is a high mileage engine.
No.... never a camera should never vibrate or make rattling sounds. If it is doing so then your camera is destroyed.
stretching farther then normal
well yes!
forever
when the QB is not in the normal snap position and is back farther in the backfield.
Yes, barely though.
No lubrication is necessary under normal use.
You can live without it. Subwoofers are bass speakers. Normal speakers have bass elements but are not as "chest rattling" as a subwoofer.
thoracoabdominal hernia
You do not have to plug anything. You will have normal brakes even if the ABS does not work.
im guessin the normal Prestone 50/50 mix
It could be a sticking valve lifter. If you didn't hear it before, it should be investigated. Ticking is not normal.