We were posing for pictures on Pickens Nose rock as some girls were making our picture from across the way on Pickens Nose cliffs. Noticed object when we were looking at pictures. Kevin thought it was a hawk but then realized it was a round object in the air. Since all our information is from the photo,there was no actions or motions noted. We were surprised to see something in the photo that we didn't notice while picture was being made. We were very curious as to what it could be. Also it bears saying that we did not see the object in the photo until we were looking at pictures in the car. We had left the area and driven away.However, while we were hiking, I remember feeling strange. I thought maybe I was dehydrated/over exerted, although I had been drinking water. I didn't feel very alert and told Kevin, I felt like a zombie. Walking down the path felt very dreamlike and surreal. Kevin made the comment that when he took his glasses off, he felt dizzy.