Welcome drunkandalone -
You're reaching out today, which is a huge first step....
We all know what it's like to get caught in the the vicious cycle, where it seems like all we need is "just one more" to feel better. I agree that getting help to detox is the best thing you can do now and seeing a doctor would at least give you some official paper work to back up your taking time off work (they can probably write up a separate work excuse without referencing the alcohol).
It's hard to deal with the breakup of a relationship, but you're hurting the person who most deserves your love and attention (you). We're here to support you - believe me, you're not alone......:ghug3