I have had that feeling. Just panic trying to fly round in my brain. Heart-pounding, gut-wrenching anxiety, for no reason I can pin down. For me, it is usually the jolting realization that this disease could kill me. At 74, I'm not nearly ready to go. But I have to remember that there are a lot of other things that could get me, such as a heart attack, a car accident, or drowning in the bathtub. People do. But none of those are at issue right now. So I take myself down the path of realistic probability, and check myself out. None of us know what is going to happen in the next five minutes, a truth which was told me by one of our dear moderators here. Think about that. An asteroid could hit the earth. Or germ warfare, or, or anything. Because we don't know the future, all we can do is lay out plans for what we think is going to happen, and say our prayers. And do our best. And not worry about it.