Im addicted to Nyquil?

You can become dependent on Nyquil, although not necessarily dangerous, your brain fails to produce the drug naturally that allows you to fall asleep, which is present in nyquil. If your really looking to sleep much better, cut caffeine out of your lifestyle and in a week or so you will be sleeping perfectly, however the with-drawls are pretty bad, but a few sleepless nights, for many good ones, simply by changing your dieting.