So if you've been relentlessly reading this forum, you know that at 11 days, you can test for some things already, right?
Testing would put an end to your gonorrhea, chlamydia and NGU concerns - those are the most common STDs with oral sex, and the chances aren't high.
My guess is that everything you are experiencing is normal, and you are very anxious, and noticing things you wouldn't usually.
But test and put your mind at ease. You can test now and rule out the most common ones. You can test at 6 weeks for syphilis, though that's not nearly as common in most developed countries, and if herpes testing is available where you are, you can do that at 12 weeks, but without symptoms, I wouldn't worry about that.