i'm so glad the LLLeader was helpful - that's great.
this is a good example of when weighing too frequently can be a problem - we panic about every little dip, and don't see the long-term or larger picture. (saying that not just for OP but for others who may be reading). so - are you weighing at home? it might be time to just let baby nurse nonstop for a few days to catch up and get better at his new skillz and put the scale away. once-weekly weighings are PUH-lenty for most babies! that'll give you a good idea of the trend.
edited to add: what an exciting birth! i take it that wasn't the plan; glad it worked out for everyone!