What’s wrong with my chest/breast?

Ever since maybe the beginning of April, I have been getting these tiny little bumps on my chest. They are red and they are starting to increase. A lot of the times they are also itchy. lately they seem to be getting a little worse. I told my mom and she said that it might be the detergent that she is using but we might go to the doctor anyway. This morning, I woke up with my left nipple sore and tender. Throughout the day, it is sensitive to the touch every now and then and still feels a little tender. when I look in the mirror I see a lot of tiny bumps on my chest, and above that there seems to be some sort of stretch marks and it looks kind of weird. do you think everything‘s OK?

Could be hormone driven, but always good to get it checked out.