I think that your grief will take the lead and take you to where you need to go. We follow our grief and it manifests itself in various and interesting ways.
Your 'not feeling anything' or even feeling her presence is part of your grief. This will likely change. It may not. There is no wrong way to deal with loss. There is just your way, OP. And that is totally ok.
Grief is a very isolated experience. We often talk about families grieving together. But in my own experience, grief can often tear people apart. We put expectations on each other to grieve a certain way that may 'help' others, to be there for each other, to pull each other through our grief. But grief is a solo journey. You do it in your way and in your own time. It is a process, an individual process.
I personally believe that there is some sort of connection between the living and the dead. The fact that loved ones live on in our thoughts and in our hearts is, in itself, an afterlife of sorts. That their love for us never leaves us, that we never forget their voices or their smell or things they said or idiosyncracies that they had, is them continuing to travel our life path alongside us, albeit in a different way that is metaphysical in its own simple way. I suppose this is where the word spiritual would work... in a spiritual way.
I believe in something that I cannot put words to. It's not what we're told to think, it's not an afterlife as such or 'heaven'. I just feel like we are part of something continuous. And in this physical realm of our living, we are so massive, so seemingly important (ruled by ego), yet utterly powerless to fate's hand. I think in death, we are so small, almost swallowed up by something so great and unknown, yet we are more powerful because we are absorbed into something that is eternal, significant, and greater than us alone. I suppose in death, we become part of the order, leaving behind this beautiful life of chaos.
That's my two cents that I sometimes ponder over my morning coffee.
But I probably am talking complete and utter bollocks (I mostly do... but it brings a bit of peace to these crazy days of living).