The first thread I ever posted on the CB around 3-4 years ago asked the same question. While I was reading the book I was thinking, "Wow, that's exactly how I feel/felt." I had never discussed the experience with anyone, at that time, and thought I was crazy for experiencing some of what I did. It let me know that what I had been feeling practically my whole life was not only normal but common.
My Mom had a extremely progressive case of MS. She was an invalid from my earliest memories and died when I was 14. I read the book when I was around 34 and am now 44. Some feelings never go away but that's okay.
Good luck on your journey to find Peace.