My insides are eating my other insides

Oh god, here it comes again. The 'butterflies' are back. Well, they're so much worse than pretty little butterflies flying around in my stomach, its like a person tickling me from the inside, or a monster, squirming around and laughing at how uncomfortable I seem to be getting and how red my face is turning. The worst part about it is, you are not even in my presence. It has come down to just the mere passing thought of you. Or even hearing your name, whether it's you being discussed or some other [Insert name here]. Even when I'm shouting "FML, pay attention to me!" With phony anger to those who'll lend an ear to my comic tragedy, my stomach's churning. I thought I had it bad a long time ago, and then I thought I had it all shoved into this little box on maximum lock down so that it couldn't break out and catch me by surprise. While going about life, I didn't realize the lock was slowly breaking, and it hit me all right away. I thought I was out of high school, but this high school girl crush/infatuation has me in a choke-hold and my consciousness is ebbing away...
My insides are eating my other insides.