Hi jm,

Thanks for posting a question.  Although I'm not a doctor, and therefore cannot offer you medical advice or make medical assumptions, I do have herpes and am pretty knowledgeable about the subject.

Although herpes does come in the form of blisters, there is no way for anyone to diagnose you over the internet or phone.  You need to go see a doctor as soon as possible and have them check it out.  If they suspect it's herpes they will probably give you a blood test.  If you have no health insurance, and live in the US, you could call Planned Parenthood and tell them about your situation to make an appointment.  

I'm sorry I cannot answer your question but I think you need to see a medical professional.  In the meantime please refrain from having any kind of sexual relations and you may want to check out the Herpes Symptoms page to look up your exact symptoms.  Also, you might find the Herpes Basics page helpful as well as the Causes and Risk Factors page.  

Good luck and please make that appointment soon!

PJ