So, I am not sure if I explained it well, but I'm 30 weeks now and spent all day yesterday on my feet in the heat walking around town (park, walking bridge, museums, etc.). About half way through the day, the one or two sets of abdominal muscles just under my bust line became more and more sore. We made the 2 hour drive home and now today, after a night of sleep, I finally feel a bit better.

I remember reading a while back that throughout the day your abdominal muscles fatigue. I noticed that when I wake up in the AM my bump seems smaller than before I go to bed. (Also you eat throughout the day, but it seemed too significant a change for that).

Anyway, maybe being out on my feet all day caused muscle fatigue and that's what the pain was about?

Anyway I'm just curious if anyone else has experienced this and knows what's going on.