I can see that you have posted over 50 times in this forum. That is highly unusual. If you are having worries or medical problems that necessitate this level of posting, you should surely see a doctor.
Just to make it clear:
The only risks for HIV in adults are:
1) Having unprotected anal or vaginal sex, or
2) sharing intravenous needles with IV drug users.
If you did not engage in either of those activities, it does not matter whether your partner had syphilis or not. You cannot get/transmit HIV unless you do the activities I listed above.
But you have already been told at least 2 other times that oral is not a risk so not sure why you have asked for a 3rd+ time.
Besides, oral is zero risk for hiv. You haven't been diagnosed with syphilis anyway but whatever answer you get from the STI forum will not tie you into any possibility of an hiv transmission.