A fast object going back and forth then disappears out of the blue.

I was driving up Arthur street in Gravesend to pick my misses up and in front of me was this bright fast light in the sky going across the sky and it went so fast in the sky from left to right and I’m shocked that it made a u-turn that quick to come back on itself then it stopped and went up or strait out the sky in seconds. I've seen loads now and every time I talk about it im woke at 2-30 every morning so hot and it feels like day time.  Light bulbs blow but tv goes on.