Hello dear,
The chances of acquiring
HIV occurs if:
1. If your partner is affected with HIV
2. If there is any cut/raw surface in your
oral mucosa through which the infection can spread.
If the above mentioned criteria doesn't hold true for your case, then there is no need to worry about getting HIV.
HIV does not have any particular set of symptoms. It has a wide range of symptoms & vary from person to person.
However, the symptoms as mentioned by you can also be attributed to your diet.
There are certain tests like p24 assay or PCR for HIV, which becomes positive within a week and are almost 100 % sensitive.
Even the presence of a single virus in the body can be detected by PCR.
So, if this test comes negative, you can be sure that you are safe.
Wishing you a good health.
Take care.