Well, the good news is that this is in a fairly non visible location, right? :>)) No reason to be embarrassed. Are you sexually active? Only asking to surmise if this could be related to that activity and if they are blisters related to herpes. They could be warts as in hpv as well. Otherwise, they could be hair follicles. Do you shave? We'll go from there if you can give us a bit more information.
Go get tested if you are sexually active. It could be ingrown hair bumps if you shave but those wouldn’t be around your vagina hole though. You need to be tested