No problem @avant-garde 

Yes I definitely understand that grieving is different for everyone and that there are different types of grief.

 I suppose I have been grieving for my childhood in the past but I did not recognise it as grieving.

Whereas grieving for my Dad when he passed away last year was different. I think in a way partly because other people knew my father had passed and were expecting that I would be grieving. Whereas grieving for childhood etc is something I do completely on my own and it is very much delayed. So I think what you are saying definitely makes sense