HIV is never diagnosed by symptoms. The symptoms people associate (or think are related) with HIV can be caused by lots of other things. If you always use a condom, you should be free of worry. The usage of a condom prevents HIV transmission during vaginal or anal sex. Sharing IV drug needles is the only other way people get HIV. Oral sex is not a risk because saliva and air deactivate the virus. Hand jobs, touching fluids, etc. is not a risk. So, essentially, it doesn't sound like you have risked HIV. The small cut on shaft is not going to make a difference. If you don't feel well, get checked out but it isn't HIV related based on what you've written here.
Your symptoms relate to numerous other issues. From reading various reports online, the main symptoms are a Fever, body rash and Flu like (not to be confused with a cold).
The scenario you mention doesnt sound like anything to be remotely worried about.
Here is a great link of info put together by one of the moderators here. Ultimately the only way to be sure is to test.
https://
www.medhelp.org/user_journals/show/88524/HIV-THE-FACTS