I just recently lost my Mom in January. They told her she has 2 weeks to 2 months & it really ended up being 2 days. PLEASE spend as much time s possible with your sister - have NO REGRETS!!! Talk about everything from her wishes to your childhood. Cherish every moment you have. I cannot express that enough. Also, know that she loves you. I am crying just reading your post because it is all so fresh, I had the experience where I wish I could have said more even though I was with my Mom all the time. She was only 62 years old. Much to young in my opinion. Please keep us posted & don't be afraid to show your emotions in front of your sister, it's amazing how a good cry together can be SO helpful. You & your sister are in my thoughts and prayers.