Two weeks ago I gave a handjob to a stranger (nothing else happened). The encounter lasted about 40 min. Afterwards, I noticed I had a small cut on my finger (a cut that must've already been there but I never noticed before). It wasn't bleeding or anything like that, but, well, it was definitely broken skin. I washed my hands about 20x vigorously after the encounter (I think all that rubbing of my hands with soap while washing them might have irritated the cut because it stung a little bit later that day).
36 hours later I developed flu-like symptoms (muscle aches, fever, fatigue). The cut healed within a couple of days. The flu-like symptoms lasted about a week. I don't have any visible sores or redness anywhere.
Do I need to get tested for herpes? Was this a risky encounter due to the small cut on my finger?