You are stressing out too much. HIV wouldn't obliterate your immune system in two days. Just take care of the flu. You'll be OK. If you feel like you need to be tested for HIV, then go for it, but it's not causing the present illness.
God is angered by your slutty activities. HIV or His irreversible virus is god's way of telling you that you are going to suffer a pain full death then go to hell. I am sorry my child but you shouldn't have given yourself away so easily for mere pleasures of the flesh.