Based on the information provided, fatigue
and the mild fever
generally are due to "FLU".
BUT due to unknown status of other partners there are some chances to be infected by the HIV
as it spread through fluids from body, and pre-cum is a kind of body fluid as well as saliva can also cause such spread.
STILL NOTHING can be said for SURE, Following test needed to be done in order to see the current status.
To check the infection status ELISA
TEST is used primarily as screening test and if it comes positive then the WESTERN BLOT Test is used to confirm the diagnosis.
Their is a test called P24 ANTIGEN test that can be use and usually turn positive in person with infection 2 months from the exposure.
Hope you are not exposed to such kind of infection.
1) always USE PROTECTION
2) And do not go for ORAL as it may lead to spread of HIV.
3) Get your self checked for ELISA or P24 ANTIGEN Test just to be on safer side.
Dr. JAY PATEL.