Could this be oral gonorrhea or any type of STD?

I am a 20 year old female. I have been with the same partner for almost 4 years now. We both are our first & only sexual partners. I’m usually really aware of my health. And sometime last month, I discovered red cobblestone bumps on my pharynx. I noticed it 2 days after I performed oral on my partner, but we usually do it all the time. My period is also 2 days late but we only performed oral sex & no intercourse. They do not hurt at all. I also had some burning in my gum and tongue but that went away in a week. At first when I breathed, my pharynx felt irritating, but I had no trouble swallowing food. I got really worried so I was referred to an ENT doctor, he said it was just reflux laryngitis since he examined it with an endoscopy. So he prescribed me amoxicillin for 7 days which helped a little but the bumps never went away. Sometimes, I would experience bad chills with no fever at all especially when I sleep. They would come back one day & another day, I would feel normal. I also noticed one white small tonsil stone above one of my tonsils. Could this be oral gonorrhea or any type of STD?

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