I am a girl and I had oral sex 8 weeks ago(I Only gave it to a guy). I started to feel like something is crawling on my skin last week, then twitches in my nerves and itchiness on my skin. No other symptoms. Could this be herpes ?
Herpes infects nerve groups. Oral herpes infects the trigeminal nerve in the lower half of your face, and genital herpes infects the sacral ganglia, which affects basically the area covered by boxer shorts. These are the only areas you'd get symptoms.
Also, unless the person you gave oral to had an actual outbreak at the time, it's HIGHLY unlikely that you'd get oral herpes from giving oral sex. While it's common to get genital herpes from getting oral sex, it's not at all common for herpes to go from the genitals to the mouth. It just doesn't happen.
I'm not sure why you are having your symptoms - anxiety, a neurological issue of some kind, an allergic reaction to something, stress, or what, but it isn't herpes. You should see your doctor to rule out anything neurological.