Over 25 strange ships flew over us while camping. We could feel them come since they were small lights at the horizon, then seemed as it came closer to us. So close that we thaught it was a drone someone was controlling (it seemed to be around 30 meters from us). When we got a better view of it, we noticed some lights flashing around it, and then started to think it was an airplane. Right when it was over us, we felt a presence, something strange that made us still. It went away and we started to joke about it, but I felt something more was about to happen. Then we turned and saw some more approaching, they all seemed to be heading behing a mountain about 5 miles away from us.We were very thrilled at first, until it started feeling heavier; temperature dropped, we felt heavier and were scared, couldnt move much. Thats when we decided to go back to the fire and later on, try to sleep. But the thing is; we couldnt get any sleep, we could feel something in the air. Ships were still flying above us and made a loud noise (kind of a jet-like sound but not so constant, it changed to modify its speed and height)We spent about an hour trying to sleep, but ended waiting for the morning to come. Time seemed to have stopped a couple hours, but at last, sounds of nature came back, so did the light and the sense of tranquility