Has Alzheimer S. Fell And Broke Leg. On Thyroxine And BP Medicine. What To Do?

My 91 year old mother has Alzheimer's she recently lived with us fell and broke her leg and now is in rehab the Alzheimer's has escalated she still knows who we are and others are she still knows that she's not at home she cries and begs to come home but she wants to go to the home she had before she moved in with us. My father died five years ago and that's all she talks about is wanting to be with him she can't understand why God has not taken her yet she begs to die but she doesn't want to commit suicide knowing she won't get into heaven if she does. I've had some friends in a similar situation but their parents Were not as old as my mother stating that I should talk to the doctors about removing her from her medication so that her body will give up for lack of a better term I don't know what to do I don't want to lose my mother but seeing her like this hurts so bad is it It wrong to remove her from her blood pressure medication level thyroxine because that's the only medicine she's on. But then I feel like I'm pulling a Trigger I don't I don't know what to do