Two shimmering disk like objects over Falls Church, VA.While running laps at Falls Church high school football field, I was on the ground stretching and doing sit ups and lookiing up at the sky, when I saw a shimmering disk like object moving at a slow rate south to north in a wobbling type manner, clouds around 20,000 ft. The object would pass above and behind the clouds at moments then reappear. After approximately a minute and a half, and as this first object was now further north of Fall Church, towards Bethesda, MD., a seconds object, just like the first appeared above me and was in follow to the first object. As the objects wobbled, it appeared they were shiny on top, darker on the bottom, but it was a strange dark shade, I couldn't really make out a specific color. There was no sound I could associate with it, no vapor trails.The following object disappeared within a minute and a half some where north of Falls Church, VA. End of statement.((NUFORC Note: Source of the report elects to remain anonymous; provides no contact information. PD))