My kitty's cancer came back.

She had a tumor removed a year ago so I guess we got an extra year to love her, but now it's back and throughout her lungs and liver. I have to go in about an hour and have her euthanized, she's suffering so much and I don't want her to be hurting anymore. This is so hard, she's been with me through college, getting my first job, marriage, 3 kids, and 4 states including a cross-country move. I know I need to let her go so she won't suffer any more, it's just so incredibly hard to say goodbye to my furbaby.
