From your description, there is no particular reason to be concerned that your current symptoms are related to HPV, which generally doesn't cause itching. (This is a little controversial; there is a a syndrome called idiopathic vulvodynia [Latin for vulvar pain] and some belief that HPV may be a cause in some cases. But this never has been proved.) Your concern about yeast is realistic; your symptoms sound more like yeast infection than anything else.
But I can't help you further, and neither can anybody else based on a written description online or otherwise. I don't understand why seeing a healthcare provider for symptoms is intimidating or particularly stressful. If it's because you have a provider who has made you feel uncomfortable or ashamed, find another provider. A good source would be your local health department family planning clinic, or Planned Parenthood; or ask around among friends and find who is happiest with her provider. One way or another, see a health care provider soon. Don't just sit around waiting for your symptoms to go away; they may, but then they'll probably just come back.
Good luck-- HHH, MD
I'd bet it isn't HPV, but some other common problem that could be easily treated if you would only go and get it checked out. Incidently, HPV is nothing to be embarrased about or ashamed of. Most sexually active people are exposed to it at some point in their lives.