Charti, hard to find words here, i am sorry to hear that.
You did the best you could in this situation and therefor you earn a LOT of respect, you are a very nice guy and i believe the most of us would not have been able to handle a situation like this like you did with so much caring for your mum.
I hope she is now released from all pain and she can rest in peace.
My prayers to you and your family, stay like you are.
All best,
bbb