Stiffy,
Chill out. Pre-meds are mean, but we can't help it, especially when the smell of fresh meat is so strong. Are you attending said Ivy for undergrad or are you going to another school without transfering credits? If you don't use that English credit, or any others from that school, as part of your undergraduate requirements, then it probably won't affect you. If you do have to report it, it still won't have much of an impact because, like you said, it will have been 6 years, in which time you will have maintained a 4.0 while curing cancer, right? Either way, your college performance is more important.
You sound motivated enough, but you might want to let your sphincter relax a wee bit before you implode. 🙂