The tiny Itch is in my vagina area
The chances of you transmitting herpes from your genitals to her mouth are very, very slim. Herpes almost never goes from the genitals to the mouth, and oral hsv2 is incredibly rare. It's not something I'd even worry about, especially with the oral only lasting a minute or so.
Female-to-female oral sex is probably among the safest sex there is. Yes, gonorrhea could be a risk, but it's unlikely. For one, unlike with oral sex on a male, nothing is entering the throat. Also, gonorrhea in the throat is more likely in men who have sex with men. It can happen in women, as women do perform oral on men, but gonorrhea in the throat isn't common at all, and given that your vagina can't get into the back of her throat, I wouldn't worry about this at all.
Doxy wouldn't cure gonorrhea, so there's no need to take it if you aren't already on it for acne.
Don't let the guilt and anxiety trick you into thinking you have symptoms. Guilt doesn't equal risk. You'll need to work through the guilt, but that is a separate matter from risk.