Yes, Roses, I flipped like that 3 months ago. OH had been very ill for several months, but I held everything together all that time for him, house, myself and family, taking every setback on the chin and staying positive to help him do the same. Then one day I was at the minor injuries unit at our local hospital, having a wound dressed and the nurses were really kind and sympathetic. For some reason, this completely opened the floodgates. As I walked back to the car, I started crying thinking about their kindness and sat in the car sobbing for ages before I could drive safely away. Ditto when the head of youngest GC's nursery was similarly kind and helpful.
Huge sympathy over the flood, Roses.
. I had something very similar years ago and it is devastating. It might help you through this awful time if you are able to take the opportunity to make some positive change in your house which you've always wanted to do - e.g. change a carpet you've never liked, change a colour scheme, get some new curtains. Good luck with it all.