Did you notice your symptoms returning sometimes in the second trimester?

In the second tri my breasts have been less sore (but still sore) in the second trimester and I've had no nausea, and also no headaches (which I got in the first trimester). The past few days, my breasts have been KILLING (a la 7 weeks pregnant), I have been nauseous, and I have had this weird buzzing sensation down *there* (which, I had from like 1DPO until 8 weeks preggo...I'm not kidding). Did you notice little surges in symptoms in your second tri? I wonder what bodily function is being improved/developed to cause this!! I'm 22 wks.