Sounds more like a cold.
Your risk for any sti is very low, some are zero.
1) symptoms doesnt sound like herpes
2) if you have blisters then u might have herpes
3) if not, highly likely u dont have herpes as most ppl have symptoms.
4) oral sex is a risk for herpes. Go get a test if u want
Also, my scrotum has been a little bit itchy today. Another thing that is weird but may be unrelated is that I washed the towel I used for showering two days ago and dried, but today it smelt very bad and moldy. My roommates towel which sits next to mine also smelled moldy and our bathroom also smelt moldy so I also wonder if maybe I got some fungal infection but I think this is probably just from not ventilating our bathroom enough