what u are describing sounds like how i was in the last few weeks i was very swollen it causes tingling as they were so swollen, i also had lots of the runs lots !! also lots of different cramping ,tightenings, all different tummy pains.
i also worried about it all but each appoitment i was all ok

That being said everyone is different so if she feels she is worried about it she should call the hossy and go in for a blood test and to check on bubs as u if ur worried it will only makes things worse, and she doesnt need extra stress on her

I hope its just pre labour like mine was with bad swelling