smkirchdoerfer - There are many ways to think of our triggers. Sometimes we can assume something is a trigger, but it's related. For example:
Many people think stress is a trigger, however it has been removed from the ICHD-II's list of triggers. Most people find that when they are stressed they do things (like alter sleeping or eating patterns) that otherwise trigger their attacks. They're stressed and not necessarily thinking about it though, so confuse the trigger of not sleeping or eating right etc as stress.
The same may be true for crowded situations.
Like you, I avoid them. I actually like being with people, but the sounds, noise, smells, even flashing lights coming from between people as they mill about, etc get me pretty quickly. My hubs used to think that it was the crowd I was avoiding, but when I explained that it was what happens IN THE CROWD that was my trigger, he got it. Have you thought about the things that happen when you're in a crowd as potential triggers? Many of these things are very likely to take our over-sensitive brains into over-drive 😀
~Ellen