Important to note that hiv is never diagnosed via symptoms. They look at risks. You had unprotected anal sex which is a risk. However, please note that it is very low. A one time exposure is LESS THAN 1 percent. Very unlikely for you to get hiv from this unprotected episode. However, you do need to test. On day 28 or after, take a 4th generation duo test.
And also i experiencing sweaty either in hot or cool place. And also a little lump behind my ear