How can one address the anxiety related to the potential of acquiring an STD?

Hello doctor,

I recently attended a bachelor party that involved adult entertainment. During the event, one of the dancers filled a plastic test tube with liquor, inserted it halfway into her vagina, and then offered it to me. Given my inebriated state, I knelt down to her pubic area and placed my mouth on the open end of the tube. She proceeded to make gyrating and thrusting motions, during which there might have been some physical contact between my face and her pubic region. While engaging in this activity, I had canker sores inside my lower lip due to recent dental work. I am now concerned about the possibility of having contracted something, particularly HIV, and this is causing significant anxiety.

I am unsure if any vaginal fluid came into contact with my mouth, as my recollection is not clear. I am unaware of the dancer's health status, which is adding to my worries. Given these circumstances, I am seeking guidance on the appropriate steps to take next to address my concerns and ensure my well-being. Please help.

Thank you.