So sorry for your loss @Crunchymum. It's the hardest thing I've gone through. Am going through.
My DM was in hospital, but expected to be moving to after care for a couple of weeks to get a bit stronger, then I was coming back to stay with her, to get her strong and well again. It was all set up. But then I awoke to the call from my sister that she was gone. No reason. The doctor said he could see no reason, but she wanted to go. She was ready. Sat up, had a cup of tea, then lay back down. To die.
I knew as soon as the phone rang. It took 24 hours to get there, on my own. I thought I might go mad. I pictured being arrested in line for airport security, as I could not bear to see the happy travellers all around me. I just wanted to sit down and wail.
For months I found myself thinking, at any interaction, 'I'm bereaved.'. It seemed impossible that it was not obvious and ridiculous to expect anything from me.
That passed, slowly. I functioned in that half fog. I would shut my mind if it veered in that direction. One day I heard her voice say my name with joy, and found i could smile, and treasure the memory. There are still hard days, but it is easier for the most part, this new normal.
Unless I speak to my sister. We always end up crying. That may be good for both of us.
Sending love and strength to all who mourn, and 💐