6 wk sleep regression & growth spurt

8/24/16
My dd has been a really good natured baby thus far, and has been sleeping great at night too(for a newborn). 
Now that she's hit six weeks she has become fussy and irritable; her naps during the day seem short and sporadic.. she is super fussy in the evening and just wants to cluster feed. 
I read that they commonly go through a sleep regression AND growth spurt around this time. I don't remember this with my first daughter. Maybe because I blocked it out! Lol
Anyone else going through this?