I would be interested to see a calorie comparison between your two diets. I know that fast food is extremely high in calories, but it's pretty damn shocking. Anyway, congratulations on getting yourself on the healthy track! I know that when I was eating nothing but fast food, my health deteriorated and even when I realize what it was, it was difficult for me to get back into eating right. So, bravo! You have my kudos.
PS - After eating so much fast food for so long, it would be wise to check on your fiber intake. I boosted my fiber after a while of eating healthy and it was the single most important thing that I did for my body. My skin cleared up, my nails and hair started growing again, and the mental clarity was astounding. Fast food can really take a toll on the body.
Anyway, congratulations again!