I don't know.. I had horrible pain after I picked up something to heavy and ripped all my stomake muscles last time I was pregnant. Maybe call the Dr and ask the nurse.
Sheesh, wasn't done typing. I also experienced sharp hot pain on my lower left side when I was 33wks, I'm now 36wks+5 and experience the pain now on both sides sporadically. I have a HIGH pain tolerance so I just let it pass, I pray yours cease!