I'm an 18 year old girl. I'm a virgin. I notice when I sit down on hard seats or just sit for a long time I get one or two painful bumps on my butt cheeks. I have a big butt too, I'm overweight. You can totally see them when I wear a swimsuit. It is so embarrassing. I also notice that around my period I get them. I'm too embarrassed to tell anyone, even my mother. I definitely don't want to get it checked out by a doctor. From previous bumps I have scars or they haven't quite gone away. Does anybody have this and is there a way to make it go away? I will tell my mom or go to a doctor if I have to, I'm just scared and embarrassed.