Congratulations on freeing yourself from nicotine and alcohol. It's also common to crave sweets when quitting smoking because 1)you can taste them again and 2)I'd have to check to be sure but I think smoking alters the way your body metabolizes sugar as well as other substances, so in its absence your body may be craving sugar.

I also quit smoking and drinking at about the same time about a year and a half ago and for a while developed an irresistible craving for sweets, but I can't say for sure which substance's absence brought it on.

To help with the cravings I found the following to be helpful, in order: Faith, sugar free cinnamon gum (spicier the better, not nicotine gum), artificially sweetend sugar free fruit drinks (sobe, etc.), and diet cola. Be careful though, it might seem like a good idea to drink more caffeine to get through the nicotine withdrawal, but nicotine mitigates the effects of caffeine so a nonsmoker needs only about 1/2 the caffeine he/she would've had when smoking to achieve the same effect.

You might want to start walking moving towards some kind of good cardio exercise to start getting your cardiovascular system into shape. Start slowly though, and of course check with your doctor first.

Once again, great job on quitting!