If you're feeling like that, it might be time to just go with the flow for a week or so and then work on resettling. If she has the skills, she will be able to do it one day. I think now you know her sleepy cues and hungry cues can be pretty similar, you can probably take a more relaxed approach of watching the clock til 2hr then watching her for tired cues (watch clock til 1:30 the watch her for tired cues if short naps). I think its worth feeding on WU from each nap, even if its been a little less than 3hr so you're not in that situation of wondering if she's hungry or tired.