especially over concern! why stress. not worth it if your going to worry.
Ditto. Why risk it? Just wear a condom for vaginal, anal AND oral. I know there is all this debate that oral is low risk etc but if you can make a low risk a no risk, then, I think that is better.
"theoretically" it is possible, but not likely. If you are this concerned about the individuals status or yours and passing it others then wear protection. If this is going to be your fear than you can fix it.
HIV mouth ulcers? Is that something new?