I've never really had crowd fear, but after a crush event at an agricultural fair underpass, I acquired it. Shinjuku just before rush-hour brought it back on, and I basically ran away and sat under a tree for an hour or so. I've been in Tokyo and Ikebukuro at busy times, but nothing has been like Shinjuku to me. Maybe it's the escalators and a certain ordered-but-relentless ant-army mentality getting to the platforms…
I was very thankful to find my Airbnb, and once I had an anchor point it was better.