Weird itching sensation

I recently have gotten into a new relationship about 2 and a half months ago. I've been having this weird itching sensation on the outside of my vagina. Almost like deep under my skin not like on the skin type of itching. I don't think it's an std or a yeast infection because I do a lot of research and have experienced a yeast infection before. I haven't had sex since April of last year and I've never been eaten out before. And this new boyfriend is doing all that with me and I'm wondering if all the new extra stimulation out of the blue after almost a year of nothing could maybe cause this sort of irritation. If anyone has any advice id greatly appreciate it ! Thanks! 😁