I have had lots of things happen.
I knew my family member had unexpectedly died. I had a dream about it which was nothing like a normal dream. Woke up and told my mum. I was very young at the time and it scared me for ages. I also woke my mum up one morning to tell her some of the pets had escaped. She told me they couldn't have done because she made sure the cage was secure. When she got up they were actually running around and out of the cage.
I also dreamt that my pet had died, unexpectedly and it had. The dreams were not the usual dreams, they were hugely different and I just knew it was real.
I also knew when a family member had her baby, the exact time, weight and sex. Baby was early, we didn't know she was in labour and again I woke up my mum to tell her and she asked me if it was one of my 'real dreams' and I knew it was. Got home from school to be told I was spot on.
I could go on and on. Not just dreams but other experiences as well. I will stop there though.
Funnily enough I was a spiritualist and I'm now an agnostic, bordering on atheist.
My experiences were very real and very scary. I knew the difference between a normal dream and one that was going to be true. I don't know why they happened but unless you have experienced the oddness of a dream that has come true you won't believe it or understand it. The dreams are nothing like normal dreams and they are actually scary and unsettling. It wasn't a case that I dream every night and some just happened to come true, I wouldn't really class it as a dream as such because they don't compare.
I don't claim to be psychic and I no longer believe in an afterlife. I do believe in the power of energy though, which is another thread entirely.