Phix

Since i was little (am now 25) I have this thing where I always see tiny (pinpoint tiny) dots, like static on a TV but much smaller. They are like transparent so they dont cover objects but it is more like the objects are made up of them. It is easily noticed on less-busy surfaces (like a plain wall) or in a dark area.
Is this just normal eye function that I'm just sensitive too (my mom says she sees them too, but only if she really concentrates) or is something wrong? I "see" it also when my eyes are closed so I cannot get away from it. Sometimes i feel it will drive me insane but mostly it doesn't bother me.
Please let me know. I am planning to have my eyes checked. Oh, and my glasses dont make it better. It seems unrelated to focus.