Julieann,
Is your mother still seing a general practicioner? Even though she is not going for further treatment she should still be getting bloodwork done...there are alot of other things besides cancer to watch for...such as low blood counts, infection etc...
I told my husband a long time ago that if I could help it..the only thing that was going to kill him was the cancer since that is incurable...But I can protect him from infection, make sure his blood counts are good, keep him fed and hydrated, make sure he gets exercise, that he doesn't sink into a deep depression, his blood pressure is in check, as well as his blood sugar...etc...
In my opinion, it would really be aweful if one of these other issues caused his death...I know that anything can happen, but even with a terminal illness you have to be proactive...He even stopped taking his vitamins because they were too hard to swallow, so I give him the kids flintstones vitamins...I figure it is better than nothing...
I would make sure that she gets her blood checked at least every two weeks...my husband has a nurse come to the house to do it...It is not uncommon for a blood transfusion to be needed if her counts go below 10 (insurance won't pay unless it is under 10 anyway) This could be one of the reasons she is tired? These things are not considered "treatment".
You and your family are in my daily prayers,
Karen