Story, photos and videos by Cassie Hepler I had my first heat migraine in Philadelphia… and home base is in Phoenix, Arizona now! Crazy, right?! It was the weirdest experience. I went downtown for a meeting on one of the hottest days recorded in Philly, made a silly little video near City Hall where the wind was trying to make my dress moon people in my granny panties nearby and went back to West Philly via the Septa trolley. I cranked on and down the AC, turned the lights off and took a couple Motrin. I couldn’t think straight and everything was confusing to someone who is usually smart as…