PamelaJune, I am really sorry to read that DB and your Mum were so unsupportive.
A while ago my psychologist offered me a wise thought "
It is not a selfish thing to look after yourself first.". Sometimes, if we don't look after ourselves first, being assertive if needs be, then our capacity to care for others who matter to us can get messed up.
An idea for you to ponder?
I am glad that the X-ray showed that the damage was confined.
With care and concern

.