I think your situation is absolutely normal, but not desired! My best friend is going through the exact same thing with her 6 month old, and both of my girls did this as well. Marda's advice is great. I have one nugget to add: have your husband get up to comfort her. She knows she can't get any nursing from dad : ) so she'll quite likely calm down more easily and will more readily give up those night-time snackertons. This is what I had to do and this is what is finally working for my sleep-deprived friend, as well.
Also, the short naps are probably because she's not putting herself back to sleep as she works her way through her sleep cycle. "No Cry Sleep Solution" suggests sneaking in 5 minutes before baby wakes to preempt baby waking up- put a hand on her, put the pacifier back, snuggle her up, etc.
Oh, two hours after getting up in the morning is exactly when babies are ready for their first nap, according to what I've read and my own experience.
Good luck to you! You must be simply exhausted- I feel for you.