I was told i have a bochdalek hernias in my right abdominal cavity . i am 53 years old. is this dangerous? also can i die from this????

Low possibility: What you are describing is hernia through defect in diaphragm usually on left side posterior. Now these are usually diagnosed in infants or children and may need to be fixed if lung or GI development threatened. As an adult you have either lived with this for a long period and body has accommodated with risk now mainly of GI problems or obstruction. Hernia in that location could also be fromtrauma