Suddenly feel nothing at all

Due to delays in scheduling with the funeral home, I had almost 3 weeks after the death of my grandfather to process the service. The first week was awful and full of constant crying and fits of sadness. Second week, depression, no energy, fits of anger and we had a viewing of his body before his cremation which I was really nervous for but I ended up just being weirded out by seeing him in that state and hardly having any emotions

This week was the service. The only time I cried during was seeing my dad cry and one of the songs I chose for the closing. Now I feel literally nothing. I just feel off. Less energetic and interested in any of my hobbies. I surprisingly feel very motivated at work, but that’s it.

This is my first big loss and I’m wondering if it’s going to hit me again or if this is just the next phase?