Thank you for your reply. I am male just to clarify.
Thank you for re-posting your question in the correct forum.
First, just in reply to the question as you ask in the title, before I read anything else: No. Not possible.
Now I have read the rest. Your symptoms cannot be due to HIV or any other infection from that sexual encounter. They don't sound at all like HIV anyway, or any other STD. (You might have caught a cold from your partner, though.) Further, receiving oral sex is very low risk for HIV. I can't tell from your question whether you are male or female. To my knowledge acquiring HIV by receiving cunnilingus has never been reported to occur; and the estimated risk by receiving fellatio is around 1 chance for every 20,000 exposures. And on top of all that, most people don't lie about their HIV status when asked directly, especially when asked outside the immediate sexual situaion. So you can be very sure your partner doesn't have HIV.
Of course see a health care provider if your symptoms persist. But it isn't HIV. You don't even need HIV testing on account of this event.
Best wishes--- HHH, MD