and sometimes itch. The thing is, I have constant acne or possibly kertosis pilaris on my arms back and wondering if this could be the same thing down there. I am fairly confident that if there was any possibility this could be herpes, it would have been from oral sex
This doesn't sound typical of herpes. Obviously you need to be seen when symptomatic for a proper work-up. A dermatologist could be a good choice.
Do you have a regular partner? While it's on your mind, you could get tested for herpes, just to know your status (and you partner should be tested, too).