32 weeks pregnant and baby is sitting really low!

Today i turned 32 weeks, this past 2 weeks have been really tough for me since I'm still working, i do alot of walking, but this whole week I've been non stop (working 10 hrs) this morning my baby was veeeery low in my abdomen to the point i couldn't sit straight and had sharp pain! I have Dr appt tomorrow hopefully she says everything it's ok...

Question is, have anybody had experience anything like that? If so, what were your remedies before going to the ER?