I am a heterosexual white male 18 years old. 3 months ago I had a sexual encounter with a white female 18. I got unprotected oral sex. Then I put on a condom before intercourse. It lasted 10 minutes before I pulled out. I never ejaculated this entire time. I have no knowledge of her past sexual history, probably extensive.
Nothing abnormal until a month and a half later (about 6 weeks after encounter, I developed this sore/ulcer (probably 3/8s of an inch in size) in the back most right area of my mouth. I have gotten canker sores before many times, but never in this area or of this size. It was painful. I had a nurse practicioner do a culture swab of the sore, and then she drew blood to test for herpes and syphilis. Tests came back negative for HSV 1, 2 and syphilis. she also tested for old antibodies and that was also negative. She said it looks like the canker sore was healing.
The canker is practically healed today. I had a cold a few weeks back that seemed pretty standard, runny nose and stuffy nose. Today I saw when I was just checking everything out in my mouth, I found what looks like thrush on the backmost part of my tongue. The back of my throat was also very red. It does not hurt to swallow, but it looks like the thrush wants to spread further on the tongue. I'm now scared. I've never had thrush before to my knowledge. My taste buds on the back of the tongue that seem to form a