Try posting in the anxiety forum, you can get a lot of good advice over there.
Tried that route already. My kidney wasn't cooperating w anxiety medication.
With help of a Dr and therapist you can manage it.
Yes I do have anxiety. I figured it was unlikely but I can't really switch my anxiety off.
no risk...no way...no how
So you were at a lake, pond or ocean...all which are vast. And one little tampon from all that water has you worried?
I would suggest a therapist as I would guess that you have other worries that are really unreasonable. Probably some forum of anxiety (which I have myself).
No it is not a risk even if a woman threw a tampon and it went into your mouth.