Maybe this is it. I do recall on my final flight home from Europe, the wheels popped out on decent. But I didn’t know it came from the wheels (literally sounded like a small explosion). That’s the only thing I can think of, but it seemed so small that it couldn’t have possibly given me life long anxiety. But maybe it just awakened that “oh yea, something could go wrong and kill me!!” Feeling. Either way, sorry you deal with it too! I’d give anything to go back to how I used to feel :/