Possible hiv rash or simple irritation?

For about a month now, I have had an odd rash that has appeared primarily on my shoulders and throughout my back. Some small red bumps have appeared on my chest area as well. I am well aware that there are many rashes described as this, but it seems odd that the rash has persisted so long. I have not had unprotected sex with my girlfriend (who is also the only person I have engaged in sexual activity with) but it worries me that such a skin ailment has lasted so long. I had washed my body throughly, used moisturizing lotion, and the small red dot like bumps still persist. At times, it seems they are fading, but at other points, it almost seems as if more are appearing. They also appear in small patches together rather than spread out. Would this be a typical rash of a possible new detergent or soap of some sort? Would it typically last this long? I've scanned all over the internet for a solid legit definition of what an hiv rash actually appears as, but can't seem to find anything.

I have went to the doctor to check it out, and she didn't seem to think much of it. I even presented to her the thought of an hiv rash, though she seemed convinced it was not so. I do plan to get tested soon, but I'd like something to ease my nerves in the mean time, haha.

I'm no doctor, but have you tried webmd.com? everytime I have some mysterious medical problem, I look up symptoms there, and it gives me a list of stuff to diagnose myself with. Then when I go to the doctor, it has never led me to believe wrong.
Just go to "symptom checker" the picture with the body, and start there.

Ask a specialist dermatologist ,get tested to be on the safe side , there are many types of rashes , like the other comment ,got to the doctors ,you will know for sure.

go to the doctor....

There are TONS of rashes that last a really long time. HIV really isn't the first thing you should be suspecting here. Obviously you should get tested for HIV, I can't imagine why you haven't yet if you're worried about it... But, it's highly unlikely that this rash has anything to do with HIV, especially given your low-risk sexual history. Most persistent rashes are either auto-immune and will improve with corisone-type cream, or they are fungal and will get better with an appropriate anti-fungal treatment.

There are many types of rash that can stay for years and years if you don't treat them... For instance, tinea versicolor is a common fungal infection, it causes red and/or white dry patches and can last your entire life if you don't do anything about it.