How Do I Always Know That People Will Die

This has been going on for some years now, starting over 30 years ago when I had a premonition that my flat mates grandad was dead and he would have to travel back to UK (we were living in Tenerife at the time) the next day his grandad died and he went back. Then when my daughter was 6 weeks old and perfectly healthy I had a strange vision when she was looking at me and I saw my son graduate in medicine with us all celebrating and then the next vision was of a small white coffin, white horses and a glass carriage and me fretting because I didn't know what music to play at the funeral, somehow I knew this was about my daughter I was holding in my arms, 3 years later that was exactly what happened right down to the music issue. From then on I have known when various people were going to die and it is within days of me feeling it to when they die, just last week I told my friend I thought my father in law would be dead within the next 2 weeks, he died today just a week later, there was nothing wrong with him and he was in fine health, we don't yet know how he died. How do I know these things and why does it keep happening to me, it makes me feel so guilty every time it happens. I also see other things like angels and things moving and also have visitation dreams. After my daughter died I woke one night to see an angel at the end of my bed, it was in a warm light glow and had a baby in its arms, I wasn't sure if it was because the angels had my baby girl or if it meant I would have another daughter (I had another daughter 3 years later and knew she would be fine and would be a girl) when I get these feelings it's like something has hit me in the chest, almost like a strange force that I physically feel and then I know it will happen. I don't know how to stop it or what to do with it.