Unless you're following the guidelines outlined at the start of most studio produced bareback films then there are no conditions that are relevant beyond the decision to use a condom or not.  All of us are either positive or negative, period.  Not everyone knows their status or chooses to disclose it, others may tell you what you want to hear.  No judgments here, we're all responsible for the choices we make.

Been there and had the same issues until the hottest guy I'd ever met told me bald heads turned him on.  He was the first but certainly not the last one to say it. Shave your head and experiment with facial hair if you want to and find a look that you're comfortable with because that's where confidence springs from.  Some guys have major hair issues but it's THEIR issue, not yours.  Attractions are individual and a full head of hair or a shaved head is no different than your ethnicity or skin color when it comes to whether or not a guy is into you.