Slow moving object, Bright white flashes.

At 01:45 hrs., I was feeding my horses, I was done with that and went beside my house, I was talking to my niece through her window and noticed a clicking sound coming from a outside automatic light that does not work, it sets almost to the apex of the house, so I was looking directly straight up.  When I did, I noticed a bright white flash, it was so bright that it was like someone flashed a flash bulb point blank in my face.  I tried to focus on that part of sky again looking in that general area and about 5 seconds later another blinding flash with a pulsing coming from the exact same light, as it was pulsing I got a pretty good view that it seemed to be cigar shaped and really super high.
The pulsing stopped and then it was super hard to see because of how high it was but, I kept looking in that direction and noticed a commercial jetliner  going the same direction but I did not want to lose where I saw this object.  Then, again it flashed really bright, this time I had a little perspective as it started to pulse again and the jetliner that I saw earlier was approximately 4 miles away traveling the same direction as the object, the jet was way further than the object so the object was traveling super slow and much, much higher.  The object stopped pulsing and it was again very difficult to see.
I tried to adjust my eyes to the speed that the object was travelling at and noticed it pulsing again, this time it did not flash but again travelling super slow.  Like half blimp speed if that makes any sense!  The object was moving west to east, I watched it pulsing then go dark, then pulsing, and going dark.  
I watched this for approximately 8 more minutes, but I went in the house because I was having trouble seeing it anymore!  I have never seen anything like this before.  I know it wasn't any airplane, as airplanes have other colored lights that blink, this did not have any lights like that.  I know it was not a satellite because I have seen those and they shine and move fast and when they get out of the sun's light they slowly disappear.  A weather balloon while it could possibly move that slow, it could not have produced that bright white light that flashed and seriously blinded me for a couple of seconds and they do not have lights that pulse.  I was the only one who saw this, I do not have any photos or video of it, actually I was so astonished that it was like I was paralyzed trying to make sense of what I saw.