After I took a shower, I noticed some red bumps on my chest. Some have white-ish tops others are just red. If I run my finger over them, I can feel most of them. I'm a 13 year old male.
Because of your age, you are probably getting some ingrown hairs and acne because your skin is going to start trying to grow hair. Do they hurt at all?
No, they don't hurt.
Then that definitely points to ingrown hairs. I think that going to a dermatologist might be worth your while just to make sure that you're doing well and also to maybe find a treatment for it. What do you think?