Red bumps on the shaft of my penis?

small, painless, dont burn nor itch. ive been having these for years but i havent had any sexual experience through my teen years (bout to be 17)except masturbating but for some reason i keep thinking i have had some experince as a kid im not sure if its true or not. im going to the hospital to get my heart checked could i ask the doctor then? and how can i get my mom to leave so i can ask?