When the Healthy Get Sick

When I was a kid, I loved reading the Babysitter's Club books. One of the characters had my name, but spelled it differently: Stacey. She was from New York City, but moved to the suburbs in Connecticut, where the books took place. Besides sharing names, I immediately bonded with her because she loved New York. In one of the books from her point of view, she described how she was just like one of those t-shirts or bumper stickers that says "I ♥ New York." I grew up in California, but always wanted to go to New York City. My mom never understood my fascination with the city, but I was hooked at an early age. There was one major thing about Stacey, though, that I was not envious of: she had diabetes. She had to take shots and couldn't eat sweets. Obviously, I loved my sweets (which explains why I used to be so heavy).
In one book, she secretly began eating candy. She knew it was bad for her. As the reader, I knew it was bad for her, but I was happy for her indulgences. Until she got sick. She ended up in the hospital. She confessed to her mom about eating all of the sweets. Her mom explained she would have gotten sick anyway, but needed to stop indulging.
Lately, I've felt like Stacey. I know that I haven't been making the healthier choices: more sweets, less vegetables, almost no exercise. Sure, my weight is down and I'm wearing a size 8, but I haven't really been healthy. I've been saying this voyage isn't just about losing weight, but about being healthier. Every time I chose not to go to the gym, I felt like Stacey secretly nibbling at a chocolate bar. Each time I had a sweet instead of vegetable or fruit, I felt like Stacey secretly nibbling a candy cane.
I have my third cold for this year (I mean cold season, not 2008). I just got over a cold earlier this month, now I'm sick again? Me? The one who talks to everyone about being healthy and making healthy lifestyle choices? All I can think about is how I fed the cold by not making healthy choices.
Now that the "healthy" is sick, what happens?
I'm sick of being sick, so I'm really resting today. I've literally taken it easy and rested the entire day. I've also had a lot of fluids (water, tea, and juice) and healthy foods (oatmeal, soup, and fruit). I've also been drinking my special tea that helps relieve cold symptoms. When I feel better, I will get stronger by reincorporating exercise into my life. My mind sure won't be healthy if my body isn't!
How do you deal with getting sick?