Last night me a my boyfriend was talken on a phone & so he allowed me to listen to my favorite song. When he played my favorite part I got so excited I just couldnt stop laughing. So next thing i know i got really dizzy and lightheaded and had to chill out on the laughing. Even when I got up it was like I was kind of stumbling when I walked as if I spend around in a circle. What caused this??? Is it serious??? Im 17 years old and this is the first time it happened.