Sounds like lipomas - fatty lumps that appear just under the skin and can be moved around (wiggled) a bit. i.e. not attached to deeper tissue. My Anatolian had these and ended up with several, but they were not in places that gave him any trouble. You do need a vets opinion though, just to rule out anything more problematic.
They can cause problems if in awkward places such as creases, or anywhere they may get friction irritation or impede movement. Mostly though they are more of a cosmetic problem unless they get really big. (my Anatolians were on his back and remained about 1 inch across at their largest).