Can't see all textured faces with lights toggled on

I was fighting with an issue where I could only see a few “sides” of my objects with textures. If I used an image it seemed fine, but if I painted on the texture it wasn’t. Frustrated I just started toggling EVERYTHING on and off and found the Lights box (under shading in the scene tab of properties) to be the culprit. I don’t want to turn off lights though, so … what the heck? I’m hoping someone knows exactly what I’m talking about and can tell me what I’m missing.