Think someone hit my rear bumper
 

Am cleaning my car and noticed two paint scruffs and one very slight crack, bout half an inch so I pushed the rear bumper from all sides and when I do the whole of the rear car moves up and down (which i assume it should) but there is a very slight play in the bumper (upwards/downwards motion) and i mean very slight but was wondering if this is normal or should i get the bumper looked at?

I wouldn't worry about it. Look under there and make sure the bolts are not missing or loose, other than that don't worry.

Ok.....think i'm possibly being over paraniod as this is my first car!