What's wrong with the leaves???

[Gage]

Hey guys, I would take a picture but it's so tiny I don't think it would show in a pic. I think I've seen this before, but I can't remember if it progressed to something worse or if it just went away. Basically I have a large Phal, a Bc and a couple of Vandas with teeny tiny pin hole indentations on the top surface of ALL the leaves. I looked at the tops and bottoms of the leaves of each plant with a jeweler's loupe, and could not find any bugs. Under the loupe the tops of the leaves look a tad wrinkly/leathery. I know they don't have root rot, and I water them daily except for the Phal, which is potted. The Vandas are bare root with some Spanish moss and the Bc is mounted on tree fern, and is well established with roots everywhere. Please HELP!!!!!!!!!!!!!!