I really need to get this off my chest, so please bear with me. My sister is 46 and single, has a very good job and lives a life many people would envy. She is also suffering with a PD. I'm married with two grown up children and live 30 miles away. She's 10 years younger than me, has had a college education, is extremely intelligent, and when she's not in the throes of the PD can be wonderfully loving and kind. She has also suffered with depression. Our parents were in their mid 40's when