Oh yes large crowds for me too i feel like everyones taking my air and in my space and i cant breathe.
Also being around crowds of friends. You can just see me climb to a high when theres a lot going on or in loud conversations w many friends i tend to talk loud and laugh hard and loud.
Stress is a main trigger though. It is what has caused all 3 of my hospitalizations. Once my life feels out of my control with stress before i know it, its two months, thousands of dollars,a few broken hearts and a lot of embarrassing and at this point some obviously impulsive decissions later .... i usually have little memory from my manic states. The stress leads to not eating or sleeping and then before i know it im entertaining ideas and notions that arent real and build and build and kaboom! Shes off!