Your symtoms and signs certainly do not sound like herpes. The tests showing irritation and HPV sound consistent with your symptoms. I would attribute the fact that the symptoms began after your sexual contact not to your having contracted something new but to your worrying that you did.
Trauma plus HPV don't "add up" to something more than either one alone. The trauma of oral sex months ago has no long-term physical consequences.
I think that regular use of a weak steroid to deal with the burning and regular GYN exams to look for HPV effects are all you need medically. As to your ongoing concerns about herpes, yeast, and so forth, you may want to consider counseling as well. Worrying about what you manifestly don't have is not going to do you and your relationship any good.
Thankyou for your answer to my question. I'm feeling alot better about this matter now! I just have one more thing to ask you though. I've been using the Betamethasone Cream for the past week and a half and it provides me with alot of relief from the burning now that it has flared up again. However, as a first timer with it I think i might have been using too much and i've notice that the area outside my vagina and the groin area has small red vein like appearances which i have read is a side effect of the cream. However for the first time ever I have had two rather sore pimples at separate times (one further away closer to the bum and the other close to the perenium area which is rather sore as its in a area that rubs) are pimples like this a side effect of the cream too?
Betamethasone is a bit too strong for chronic use. I'm sure you've done no damage, but you'll be better off using nothing stronger than 1% hydrocortisone, or better still, just plain moisturizer.
A related discussion, itching
A related discussion, irritation outside the vagina
I've had a problem that has occured only 2 days ago, where I'm having itching and burning sensations on the inside lips of my vagina, around my vaginal whole, my clitoris but I've never been sexually active neither orally sexually active. But I do use tampons. Could this be the reason for why I'm having these issues ? It only itches and burns if I touch that area and if I'm taking a shower, or dry myself when I use the bathroom. Do you have any idea's of what this might be ?
A related discussion, Irritated Inner Labia & Vulva