Are you okay? That sounds like a very dangerous mix of drugs. If you still are awake and reading this, you should go to the hospital ASAP. I know it has been several hours, but with that sort of mix it still would be a good idea to go to the hospital just to make sure you're okay. Hopefully, you are either reading this, are coming down, or have sought medical attention. Mixing benzos with opiates is dangerous to begin with, plus the fact that you took 28 pills of benzos (along with a little alcohol) could be far into overdose territory.