I'm getting quite a lot of BHs right in my low abdomen in the evenings, esp. after busy, active, on my feet days. Prev. I've had felt them like tightenings in the top of my bump but not this low down. At my last m/w appt I'd been having abdominal pain and she said something about the poss. of it being an irritable uterus and said it was normal in 4th pregnancies. Any ideas? Or am I just being a little over-anxious?