Happy birthday. I do hope your birthday was incredibly happy and filled with love, laughter, good times and even great sex.
As far as FB this soon, I probably would not. Only you know what is best. It seems soon to me. Even without the metamour who works in the sex industry, I probably would not revisit it for a good six months to a year. You have doubts, so you are not entirely sure about it. And you know what, doll? That is perfectly okay. In this day and age, you have to be cautious and safe. Nothing wrong with that at all. Follow your gut and use your best judgement. Good luck!