Could I have herpes and not show any symptoms?
Absolutely. In fact, the vast majority of women that have herpes have no symptoms. It's a cervical infection, they can't feel it, they can't see it, they don't know they have it, and then they pass it along. That is not uncommon. Even in males, you can have an infection with blisters that occur, activation and blisters that occur so infrequently that you don't think of yourself as "infected". But you are indeed infected with the virus whether you have an active blister or not. And it can be passed on to a partner whether you have an active blister or not.