Signs of HIV. Today, what do i do?

Hi, I am having a lot of chest pain and headache since yesterday, had fever last night as well and in the couple of weeks, I have lost quite a lot of weight, approximately 10 kilos, I have been thinking probably this is because of depression because a lot has been happening lately in my personal life, also I am just assuming reading a lot of articles online that all of these are signs and symptoms of HIV. I am a little scared. Mentally and physically this is very exhausting today, what do I do? I have never consulted with a doctor regarding this. At the present moment, I am 27 years old weighing 59 kilos. I can't do a lot of physical work because I feel tired very soon. Please tell me what should be my next course of action. Thank you.