Receptive oral sex (where you are the giver), is a low risk activity for hiv, made even lower by the fact that no ejaculation took place. It is highly unlikely that you would become infected in the scenario you describe.
Swollen nodes do occur during ars, which normally happens 2- 6 weeks after initial infection. It is usually coupled with a flu-like illness and most commonly, fever. It is very very rare for ars symptoms to emerge many months after the episode. However, this isn't important.
Have a test - because receptive oral sex is a certain risk (though a small one). I'm quite confident of a negative result.
By the way, when you describe your situation, it is totally irrelevant in assessing risk whether they are ts, bi, a cowboy, a pig farmer or a nun. People are not high risk, certain behaviours are. What I mean is, you cannot ascertain someone's hiv status, and as long as you practise safe sex with whoever, then you are not at risk. I cannot, and will not suggest to you that you are more or less at risk if the other person was a stripper/sex worker/monk, because how could I possibly know of their status and why does it matter so long as you were safe with them?
