Brief Answer:
Sore throat alone is not at all specific symptom for HIV.
Detailed Answer:
Dear,
Welcome to Ask a Specialist Service.
You had hand job with an escort and the chances of getting HIV through hand job is extremely less likely so you need not to worry. Further, the symptoms you have are seasonal and due to common viral illness and not specifically related to HIV so just calm down, forget the episode and move on in life. If any other doubt is there, feel free to ask me any time.
Thank You