Feeling like I haven't grieved yet

[GriefWorks]

My sister died, suddenly and awfully, 8 years ago. She was still in her 20s. It was - and is - shocking and terrible.

The thing is, I don't feel like I've properly grieved. What's the matter with me? I did sort of decide early on that I'd have to get on with things and not give in to the emotion (I had kids, including a baby at the time, and a demanding full time job). I've cried sometimes, and on occasion something "sneaks through" and I feel devastated, but generally speaking, I feel like I just still haven't let the news in yet. Is this weird? I love her so much - she's a fundamental part of me - so why do I so often feel so empty/nothingy about it?

I'm sorry for your loss Op, at your DS's age it must have been a terrible shock. People grieve differently, there's no right way, some people fall apart and take months to recover, others like yourself feel they need to get back to lives practicalities.
It was suggested to me that keeping a grief diary would help, just jotting down what you remember about her, when you think of her and how you feel. It's a way to focus on her and how you feel, to unlock the sadness that you've supressed.