Since giving birth to ds1 12 months ago I occasionally get a pain up the inside of my vagina that feels like when you pull a muscle, always just on one side. It might stay for a couple of days then go again. I'm 7 months pregnant with ds2 (I know oh my god!?!), I'm worried about it getting worse after a second vaginal birth, especially so clos together. Should I ask the doctor or midwife or is this common 12 months after giving birth?