This book changed my life. My husband read it, and then he told me that I absolutely HAD to read it because Jill Price reminded him so much of me! I read it and I agreed, and I have identified as having hyperthymestic syndrome ever since.
The biggest differences are that I generally don't pay attention to the date, so it is only on days when I paid attention to the date at the time, that I know when something happened (no mental calendar for events, either), though I can often narrow it down based on details in the memory, such as, "It had to be Spring of 2005-2007, because...." And, I have an incredible talent for memorization, however, my working memory is terrible (the type of memory for what I am currently saying, doing, thinking, or planning), due to neurocognitive dysfunction of my right temporal lobe (I have many neurological differences, including autism).
I had no idea how different I was from others until I read this book. I never understood why my family members would tell me that I had imagined or made up things when I remembered them so vividly, and why giving more detail, such as the weather that day, what I was wearing and what they were wearing, etc., did not help them believe me. They just said, with mocking incredulity, "Oh, really? What were you wearing?" Because as a child, that is what I always added to try to make them believe me.
As to other things, yes it is absolutely a disability. Like how I memorized everything at work, when we were meant to look them up, then when things changed and I gave wrong info because I didn't look it up, and no one else believed that it had been the way it was when I was hired, because no one else remembered the old policies (and we were never retrained on that which no one expected us to remember).
Or, much worse, how would you like to vividly remember being violently assaulted? Or how you felt when your mom died? Or to run into an old friend that you hadn't seen in 20 years, ready to pick up like you saw them 2 weeks ago...but they don't remember anything except, vaguely, that you were once friends, while to me, everything is still right there. Like yesterday. But it's ancient history to them. All the feelings and memories are just gone.
It's like everyone else has amnesia. My life is a Twilight Zone episode in some ways. The world makes more sense now that I understand that. Thank you, Jill Price! Ignore the haters with their 1-star reviews. Your book changes lives.