Family Woes

My grandmother has been ill. Very ill.  I took some time off of work in order to see her while she was in the hospital.  She has decided she will do nothing further other than take oral medications.  She was d/c'd to a home.  She has not been eating, she goes to bed every night stating that she wants to not wake up.  She is tired and I can't say that I blame her for feeling that way.  My mother isn't doing well. She feels exhausted from all of this.  She goes to the hospital/now home daily to see my grandmother.  My mother has COPD and is on O2.  She has called her brother in Chicago who has come down to help out.  I don't know how long all of this can be held together before it breaks.