I am extremely obliged to you.
I thank you for your continued goodness to me.
気になったこと
Things I was anxious about
Many thanks for your kindness [kind help].
もうろくしたさま
The matter is settled.
They took every possible care of me.
the condition of completion
Became one
さしせまったさま
かたくなったもの
something that has become hard