Get a pry bar(or big screwdriver) and start moving things around, if you see to much movement, you found your issue.
All my ball joints(at 63k, in LA-read hot weather)) lost their grease and the boots are all cracked open, some all around. Though I don't hear or feel anything weird yet. I'm also lowered on CS springs.
Somebody mentioned above that you grab the top and bottom of the wheel lifted and by trying to move it in and out, you can feel for worn ball joints. I knew that is the way of checking the bearings. If you grab the wheel left and right and moving in and out, is for ball joints.