I have a saggy, white, spot under my left eyebrow close to the bridge of my nose. It almost looks like I have a spot of white eye shadow in that one spot until you look closer. Close up it looks kind of saggy or raised. Is this an age thing or something else? What is it?

Sounds like a skin tag...

Read this: Skin Tags (Acrochordons) Causes, Treatment, Removal and Pictures on MedicineNet.com

There are also pictures to help you identify if it's the case.