Thrush never builds after 3 months or even 6 months from HIV infection. Only if your immune system is completely compromised or if you have acid reflux from stress or took antibiotics or not cleaned your tongue and many other reasons. It takes years for it to manifest. See a primary care doctor or ENT for sore throat. Negative test is encouraging.
Read the below link to understand about HIV and symptoms. From one of the best hospital in the world.
http://www.mayoclinic.com/health/hiv-aids/DS00005
Level of your risk does not shift and still remains zero. As long as your protrection remains intact and does not break inside, during the intercourse, you are safe and protected. Unprotected handjob (which is seldom done with a condom on) is a zero risk again. Any "trapped" fluid inside the condom (if there was any) will not harm you because HIV (if there is any) would have already been inactivated soon after it left it host body.
Thanks Diver58 and yes I am such an amature! A little more detail. First I was slightly anebriated. Condom used for insertive vaginal sex. She then removed the condom and began hand job for 2 minutes approx. No luck so intercourse again with condom. No luck again so gave up. Only after did I find out that it was the same condom! I am still curious about how she put it on again. If it was put back on with the trapped fluids on the inside, and after vigorous hand job, that I could have been infected. Are you sure this is no risk?
You are freaking out without a reason. Your risk is non existant, in a situation, you described. You will never contract HIV through exposure of vaginal fluids, outside her vagina.
Just an advice on a lighter note. Reusing a condom is a good economy drive,, but they are not that expensive,,, are they? :-)
You didn't put yourself at risk for HIV in the situation that you've provided and you don't need testing. You should just forget about this and move on with your life.