If the real doctor or Dr. Google said it would not show up in two days, it won't show up in two days. Meaning, the thing that showed up is not oral gonorrhea. There are colds going around right now, it might be something that simple. Or, you might have had some kind of reaction to the guy's semen.
But in today's environment, women (especially teenagers) ARE exposing themselves to gonorrhea by doing oral in the quest to protect themselves from pregnancy, under the illusion that they can't get anything if they do oral. There is much more oral gonorrhea going around than previously.
Your post does not ring with the tones of someone who is doing this sex act because it is sexually satisfying to you to do, which frankly is the only reason a woman should do anything sexual, especially if it carries risk. So I don't see why you need to be doing oral at all, and because of the risks, doing it without protection just seems foolish.
If you're not 100% thrilled about doing it, are you doing it because you feel like you have to, in order to maintain the guy's interest? If it turns you on, go for it (but for heaven's sake use protection) and if it does not turn you on, the guy is NOT worth it. No guy is worth an unwilling sexual act.
See your doctor if you continue to have the sore throat, and get tested for whatever the doc thinks you might have been exposed to. Good luck!