As far as I can remember, nothing like that's ever happened to me. I don't react too badly at all to crowds, especially in shopping centres. I got lost once in a shopping centre while looking for my family, because I'd miscommunicated about where I would meet them once and there wasn't any reception in the building, but that's a little different.
It sounds like you nearly had a meltdown. It must have been very unpleasant.
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"The natural world is the greatest source of excitement; the greatest source of visual beauty; the greatest source of intellectual interest. It is the greatest source of so much in life that makes life worth living." David Attenborough