I completely understand your thoughts, I have them too. I'm 26, and have suffered from panic attacks for as long as I can remember. However I don't have kids (Kane is my bulldog) But I'm very close with my parents and 3 sisters, and can't help but think of "what it's" when it comes to the surgery. I often have racing thoughts that go from one to another, similar to what you're describing. I've found over the years, when I know I'm letting my negative thoughts get the best of me, turning on a song I really like and singing usually distracts me. I know it sounds random, but its always helped. If you ever need someone to talk let me know! We're all in this together! And soon enough, we'll be on the other side of this surgery and this will all be a faint memory!