Yep - I have this too at the moment. I spent a morning in hossy too with my first at about 19w, and was told to not be a hero and take some panadol./panadiene for the pain!
I get sharp shooting pain in my left side whenever I do too much - I'm having to give up netball umpiring as a result
I'm not getting so stressed about it this time, although its just as painful. I remember the pain going after about 3 weeks and it being a more centrered "baby dropping through my fanny" pain, so I'm hoping it happens this time too.
All I can say is heat bags, occasional pain relief and mentioning to your dr just in case.