I have a Foley catheter when the nurse came to change it a month or so ago she actually inserted and inflated the cath in my vagina should I go to er?

Why Foley? If not having a foley in the bladder for a month has not been a problem, why do you need a foley?
No. That should not be a problem at all as the vagina is stretchy and capacious and it is highly unlikely that any harm was done.
No. A foley balloon inflated in the vagina should not cause any significant damage under normal circumstances.