Can sore throat and body pain after having protected sex with a commercial sex worker indicate an HIV infection?

Hello doctor,

I am a 31-year-old male. About 38 days ago, I had sex with a commercial sex worker. It was protected vaginal sex and protected oral sex. Also, there was deep throat kissing which lasted almost a minute. I am not sure about the condom being torn. For the last 3 weeks, I have had a sore throat and mild joint pain but no fever. Sometimes during the afternoon, time temperature rises up to 37.2 degrees centigrade. The sore throat was mild but was a one-point pin-like feeling. During disposing of phlegm, a stain of blood came out. Phlegm was green or yellow in color. I went to the doctor, and he did a chest X-ray and found no problem. I tested for HIV 3rd Generation antibody test after 19 days of exposure, which came negative. My questions are: Are my symptoms related to ARS ()Acute Retroviral Syndrome? How much is the possibility of having HIV (Human Immunodeficiency Virus), contracting through deep kissing? What can be the cause of blood in the phlegm? One ENT(Otolaryngologist) specialist told me that the partition of the nose is a little bent. Is there any relation between this and my symptoms? I am feeling a little weak, but I think it is mostly because of anxiety. How accurate is my 19-day HIV test result? Can a sore throat without fever can be a symptom of ARS? I have only a sore throat and very mild joint and muscle pain, and that is also not constant.

Kindly advise.