Sounds like my baby!

And also - dd3 just fed and went to sleep too!! I'm currently awake with ds2 because he's fed and not going to sleep after having both sides. Its almost like my milk powers him up instead of knocking him out LOL

He did the bobble head thing, it was especially bad between 5-7 weeks of age, I was so close to formula because I thought it was a problem with my milk. I found that burping him helped a bit, sometimes it was wind, sometimes overtired.

I can't help you with the going down earlier - ds2 cat naps during the day so is usually asleep by 4.30/5pm and wakes up usually around d 10pm or midnight. Which would be awesome if I went to bed in the early afternoon with him LOL

So no advice but you are not alone!