Sincere prayers from the bottom of our hearts for your mother's fast recovery.
I know the last four months must have been a really stressful time for all your family.
I hope the doctors there are able to reach a definite diagnosis and explain the same to your family at the earliest.
I am hopeful that my special prayers reach out to Allah as already Im in a very sad state having just seen one of best friend's sister pass away tragically.
Best wishes, Duas and regards.