Like vienna13 said your mom needs to be seen by a doctors immediately...good luck.
All what Jesus said! But I must add my thought. I am from Ontario, and I know might be very different north –east etc. But I am also confident in our great health system in Ontario. Your Mother just need a doctor, somehow good or not so good ANY DOCTOR …or if there no doctors available then enough a Licensed practical nurse. Please check that for her! I believe them arrange regular visit for elderly if the patient can’t go out from her apartment. Also the nearest hospital can help, to guide her. She needs attention YESTERDAY!
my best!
I am afraid that can be a variety of reasons, from thyroids to heart failure passing by anemia.
Does she has any other symptoms?
In any case a visit to dr. and some test I think are required.
Jesus