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All the symptoms you have mentioned are due to bacterial throat infections and sexual intercourse related penile abrasions, and not due to HIV.
Chances of having HIV just by a single sexual encounter is very less.
With regarding to HIV testing, ELISA for HIV antibody, should always be done after 4 weeks after exposure. Doing the test before 4 weeks of the exposure is not of any use.
In case the test at 4 weeks is Negative, then it is 70 % sure, that you are HIV negative. For conclusive results that you are HIV negative, you should repeat the HIV Antibody test, after 12 weeks post exposure. If the test is negative, then it is conclusive that you are HIV free.