Hi Whitwhit,
No matter what the diet your doing is I don't think you should be in pain! You poor thing.
Why don't you have a mid evening snack to keep you going- like a small portion of nuts or a handful of sugar snap peas?
I also get hunger pains at night (although I tend to eat dinner around 8pm), my solution is to make mmyself a big pot of decaf tea around 10pm or 10.30pm and snuggle up on the couch with a fashion magazine to give me encouragement. You'll probably find your own perfect snack solution but I definitely think you shouldn't just suffer through it. You won't stay on plan that way. Plus getting a good night sleep helps you lose weight apparently!
Good luck, D