Welcome to HCM.
All the symptoms explained by you were not necessarily due to HIV
. Any person is likely to get throat infection
or urinary tract infection
Earliest HIV manifestations can occur only after 3-4 weeks after the risky contact and if it is an infectious one. HIV symptoms cannot occur within a weeks time. So you need not worry. You consult your physician and continue the antibiotics for few more days or change the antibiotic of choice. You will be alright.
DNA PCR test is not conclusive after 8 days after the contact, repeat the same after 3- 4 weeks.
Wish a speedy recovery and good luck.