Hello,
You need to ask a medical professional whether the "bumps" are something normal or something that you need to get treated (doesn't sound like they're bothering you, but could be contagious to your sexual partners, depending on what they are.)
Since you don't like your doctor, I'd suggest either
1) calling the clinic and simply asking for an appointment with a female doctor there or
2) going to the nurse at your school (if they ask you why you want to see her just say you'd prefer to discuss it with her.)
Would either of these suggestions work for you?