Don't say you are pathetic, on the contrary you are courageous!
I would most definitely talk with my doctor about withdrawal. It's serious business and not to mess around with. Just be honest about the amount you drink, he can prescribe something for a safe detox. You are not the first or the last one he sees with an addiction and won't judge you.
You can do this, beleive me, once sober/detoxed you will feel a lot better!