Hello...I'll take a jab at this I do believe that their are people that are "gifted" for lack of a better word. However I feel that they are few & far between 7 I am skeptical of most. So a few questions...
1. Did you pay her for this info? It doesn't sound like it, but just making sure...
2. Was this a place that you routinely go?
3. Was there people in the general proximity at the time that knew you?
4. At the time this event took place were you questioning your marriage?
5. If you were, did your husband know it?

BTW, nice to meet you,
LK