I'd like some advice please. I am a gay man who has sex with men. 5 days ago I gave unprotected oral sex to a new partner and he ejaculated in my mouth which I swallowed.
Almost straight away the tip of my tongue began burning and the next morning my tongue was coated white and felt irritated. I had a sore throat which has gone but now the roof of my mouth behind my front teeth is also sore.
I was recently tested for STIs before engaging in this sexual activity with new partner
HIV
Clamydia
Gonorrhoea
Syphilis
Hepatitis B and C
All tests came back negative. I'm worried I now have an STI like herpes as my symptoms are not improving. My new partner is on PREP and gets tested regularly but I don't know when he was last tested. I think he has multiple sexual partners.
I wrote to an online pharmacy with my symptoms and they advised I could have oral thrush and recommend Nystatin oral suspension liquid. I ordered this but it has not arrived yet. I'm very worried. I'm not sure if I should go back to the sexual health clinic and get retested yet as it could be too soon for a positive result to show up.
I've been reading online and I am not sure it is oral thrush. As a gay man who only has sex with men, and my Partner being exclusively gay, how likely is it that I could have caught oral thrush from him by giving him oral sex? I'm concerned it could be something more serious.
Given my symptoms, what am I at risk of contracting in terms of STIs and should I be concerned? Thanks.