DCmay, I hope you can see how many folks have crowd and anxiety issues but still love the MK.
I'm one of those who also have anxiety issues with crowds. I enjoy the MK but know when I've had enough and need a break. One thing you can do is take one of the resort launches and cruise your way to the various MK resorts....get off at one and look around, have a snack and just recharge before heading back. My personal favorite is the Wilderness Lodge but lots of folks love the Polynesian.
Take it slow and enjoy... 











Sending LOTS of Pixie Dust your way! 