First of all, congratultions on your baby and welcome to the BW board -- I have found it a great place to spend time and gt info.
Second, as you have already noticed, there are competing opinions on what you should do as people subscribe to the philosophies they feel comfortable with. As confusing as this my be, I found it best to pick a method that makes sense to me and stick with it. I really like the BW and generally use it and it is working well for me. Whenever there are issues, usually the pass within days. Also, it is important to understand what the logic behibd the specific recommendations is and adapt your actions according to this logic, so do not apply "the rules" blindly.
Lastly, on your specific question, few things come to mind -- all from experience:
-- growth spurt -- simply feed whenever baby is hungry, it will pass soon
-- low milk supply -- you may think baby is eating, when in fact, she is only sucking but no milk is coming out. That happened to me once or twice. the remedy: back to basics for you: rest, drink water, eat well, relax; feed often to stimulate milk production
-- easy cycle -- my son had 2.5 hour cycle at that time. Even now, at almost 4 months, he is on 3-hour cycle. you may need to adjust.
BTW, he is on EASY from day one and still nursing beautifully and exclusively:)
hope this helps,
aneta