Answers:
"symptoms" are extremely misleading. There are several things that a lost appetite could be a product of. As a hypochondriac myself, when I obtain bashful because I enjoy a "symptom", I will lose my appetite from anyone distressed and depressed. No means of access to speak about unless you grasp tested.
That vary from character to personage and it could be a symptom of alot of different things.
Yes, and i.e. why profoundly of HIV patients smoke marijuana for the munchies.
probably worrying that you might hold hiv would brand you lose your appetite
It could be, but if that's your single symptom I wouldn't suspect HIV