Mom and Dad are going to Nevada on Saturday and they’ll be gone for three weeks. I find that I am sad—not exactly worried, or anxious, but just sad to see them go, sad to wonder “What if they don’t come back?” I remember having the same wigglies in my stomach and gnawing in my chest when my sons left for camp. There was this same question “What if something happens to them?” but I could talk myself out of worrying about the kids easier than I can convince myself to give it up about my folks. After all, Dad is 82 and Mom is almost 80. They’re closer to heaven than they’ve ever been before. Mom had emergency gallbladder surgery on September 19.…