Someone intelligent and well brought up, not addicted to drugs, and running her own show I would not worry about but otherwise probably good to get tested.
This probably should be in the adultmug, but that isn't up to me. In any event, the chances depend on whether she had an STD. No way of knowing that. Good luck.
Doubt that would be a symptom except perhaps of revulsion. But get tested. Women who work regularly and responsibly get tested every couple of months and observe good hygiene but those who are less caring of themselves or others would be more a risk.