I know this question may sound ridiculous but are people with hiv more prone to allergies? I've been having allergies for the past month or so to my cat or something in my house that i have never had a problem with before. Could this be a sign that i have hiv? I've only had one high risk behavior in my life and that was about 9 months ago when a condom broke on me. THe girl said she is 100 percent sure she has nothing but that is not really enough assurance for me.