My condolences on the passing of Thelma. You saved her twice,the first time when she and her sister/flock mate were abandoned,and the second time by caring enough to learn how to tube feed and administer appropriate meds to pull her through illness.
I believe it was fate for you to become her keeper,so that she would be in the hands of a loving person such as yourself. I believe you were chosen for this task and even though it was a heartbreaking one,take comfort in the fact that you showed her love,the kind of love a human can give an innocent animal,for this is a special kind of love one that forges a bond that goes beyond this life and into the next. Only those that have the kindest hearts and a pure love for animals that goes beyond their soul, are chosen for this difficult journey,you have been one of the chosen,it was a gift.
Thelma may not be here,but she carries a piece of your love with her now and forever. Remember her with smiles,remember her beautiful eyes and the lovely sounds she made for only you. Remember that you were chosen to take this journey with her,and above all know that she knew you loved her.
The world today has gained one more chicken angel to look after all the rest. Sweet dreams,sweet Thelma until you and your mom meet again.