It isn't spoken of enough. When DD1 left for university it absolutely floored me. She had no idea. I had been nothing but smiles and excitement, right up until DH and I drove away from her student flat. I didn't cry, as I'm not a crier, but I was desolate and DH held my hand all the way home.
That night I slept in DD's bed, just to still feel somehow close to her. Next morning I closed her bedroom door and didn't go in there again for weeks. I couldn't. It nearly broke me.
And, I had done everything 'right'. DH and I had always made time for each other, with date nights and romantic weekends away. I had a good social life with my girlfriends. I kept working and enjoyed my job and socialised with colleagues. I did Pilates and played on a pub quiz team.
But none of that made the sense of loss any less profound. It felt almost primeval in its intensity.
The only thing that worked was granting myself the option of dropping everything and just going to her, if I genuinely couldn't bear it another day. And as soon as I allowed myself that grace I felt much better. I didn't go and see her, obviously, but just knowing that it was an option took away the weight of the sadness.
DH helped me reframe my grief into something positive, because he reassured me that grief is the price we pay for love. And that we were incredibly lucky to have a daughter that it was so difficult to say goodbye to. It helped. A bit.
Just be gentle with yourself and try and only grieve privately. Don't put any of it on your DD's shoulders please. I promise you it does get better. Start small and just focus on little things that might distract you, a new book, a new film? Maybe a new exercise class? Write down your feelings in a private journal if that helps? Come over to the many reading/book threads on here and chat with all of us about what you're reading. Take care.