COME ON PEOPLE, DETAILS! No more claims of experiencing this or that without a good, detailed story to follow!
There was once when I woke up in the night to find my husband inexplicable deeply sad. The was a really heavy, it seemed physically heavy, feeling in the room. I was like

I told it to get out and the heaviness was immediately gone.
Another time, I was helping my mom move out of my step-dad's house and I suddenly felt flooded with despair like I have never felt in my life. I am familiar with the feeling of empathy and it was not that and I did not feel particularly sad for any reason of my own. The feeling was so strong it was like a physical weight. Once I realized that the feelings were not mine, it eased.
The really freaky time was when I was a teenager and my mom, my brother, and I were at a library. My brother and I went to the basement where the kids books were and there was a boy down there who was younger than both of us. He started following my brother around and at some point made some kind of really perverted suggestion to him. My brother got weirded out so we went upstairs to find my mom. The kid followed us up there. My mom, ever the extrovert started talking to the kid and asked him where he went to school. He said the name of a school in a weird hoarse voice (which wasn't the normal voice we'd heard him using before). Then when my mom repeated what he had said back to him, he acted surprised and said "How did you know?" By now, his eyes are looking weird. A bright light blue. My brother and I were getting so freaked out by this kid that we bustled mom out to the car as quick as we could. As we were pulling out of the parking lot the kid was chasing our car.
It was maybe a year ago when I was watching some show about haunted places that I saw that this library is a nationally famous haunted site.
We had no idea. When I told my brother about it being on that show, all these years later (we're both in our thirties now) he still remembered that freaky kid and knew exactly what I was talking about.