Found small holes in interior walls?

[Andres Pico]

I just recently bought my first home and now as in rehabbing room to room I found there's small holes in the walls of 2 of the bedrooms.. I don't recall seeing these just few weeks ago although I may have missed them, inspector didn't report anything unusual either.. I'm starting to wonder if this might be termite damage or something else.. any ideas? Will attach photos in comment