Multiple sightings of very fast, bright, disk shaped flying things.

For months now I have seen disk shaped, fast moving things.  At first I thought they must be planes or jets but they move faster than that and the whole thing is bright, like the sun is shining on it, but not. There are usually 2 at a time, with some distance between them. I usually see them over Table Rock.  I have seen them at all times of the day but usually early morning or evening.  I have never reported anything before and I suppose I could be wrong but it has happened so often and it leaves an unsettling feeling in me.  I don't know what I believe about aliens but it can't hurt to just let you know what I have seen.  Thanks.