Is this herpes?

I'm a 14 year old girl, never been sexually active. Now, I know this is gross, but... A couple years ago I started masturbating with my mom's vibrator. I was 12 at the time, I was not educated at all about STDs and the rest, and in no way knew what I was doing by just taking the thing and doing it. I mainly used her her Hitachi Magic Wand but I think a couple times I used an actual vibrator (if it matters). Now, the biggg kicker is that she contracted herpes around that time. Even after I learned that she had herpes, I didn't realize how dangerous it was for me to keep using her things. I never washed her vibrators, I just took them and did it. Soon after I started using her things, I saw that I was getting these strange looking pimple-y things on my labia. A little later I had the sudden realization of "Hey, this might be herpes." and I freaked out and quit using her stuff. The thing is, it has never been painful in there, just annoying. It doesn't look like herpes, it doesn't feel like herpes, and I've never had an "outbreak", but I don't know what else they could be. They look like pimples, like the ones you get on your face, but on my labia.

I'm way too scared to ask my mom to take me in to a doctor (we don't have a very close relationship and my parents are divorced). Also, I do still masturbate, but I use my fingers. The pimples have spread over the years too.

Sorry for the wall o'text, but I really need to get this off my chest and actually seek answers.

Edit- Thanks all of you for answering and for the advice!