Individual tolerance for the effects of withdrawal vary from person to person, but I'd say you'll probably experience some minor discomfort, increased anxiety and/or insomnia, but don't be worrying about Delirium Tremens or anything like that.
I'd say the 48 hour mark should be the peak of your withdrawal, but if you're not experiencing anything by the 1.5 day mark, you're most likely in the clear. Just in case, do you have any Lorazepam stashed away? You could take some small fractions of a pill to make the process more gentle.