There is still such a lot of stigma attached to mental health issues as a result of which lots of people still don't understand what anxiety is (as a recognised medical condition, that is!! ) or what it really means for the sufferer. The same with PND. So sorry you've had such a difficult time.
In addition to all the other positive things suggested on this thread to mend the relationship, could you perhaps find an opportunity at some point to explain to your MIL the impact of these illnesses on you? NOT to excuse - but to help her understand.
I absolutely agree with everything ElaineRI55 has said re support in future.
Maybe try when restrictions are lifted to have some regular quality time with your MIL doing things you both might enjoy? These don't have to be expensive or massively time consuming, and it would show you are making an effort.
AIBU To Be So Annoyed at the Stupidity of This
Father's Day Sunday — nobody makes cards for this type of dad
Granddaughter delaying period, advice please



