I know what you feel about Your Grandma.
Im sorry that You, Your family and her have to go trough all what it means to be lost in eternal paradise and what means to lose someone very close to you. I have already felt that a few months ago. My grandpa went too. I hope, when she goes, it wont be too painful for her and I also hope that You wouldnt worry, Capt. Remember, shes probably going to a better place, where no pains or diseases exsist.