So sorry that you're feeling so sad. But I understand how you feel. I tend to be very up and down in my moods and swing from, 'It's okay, these things happen, being sad won't change anything' to awful moments of 'Why me? What did I do wrong? IT'S NOT FAIR!'
I think it's all normal and only time will ever make us feel better.
My husband is also clueless and thinks I am being 'silly' and should stop dwelling on it. But to be fair, he didn't really go through the loss in the same way I did. Sure he lost a child to, but he didn't go through all the physical pain etc. So I don't think he will ever truly understand how much it effects me or how it makes me feel.
(((((hugs to all of us)))) We'll get there one day.