should i feel ashamed ?

most of the time i go out of my way to keep my scars hidden. i always try to cover them up as much as i can or wear clothes that hide them. for what ever reason my scars are really um noticeable on some parts of my body and ive always felt that they were something to be ashamed of. that i was supposed to hide them. that i was supposed to pretend they werent there or to always have some excuse ready to deal with the few questions i do get asked about them. my mom makes me feel ashamed of them. she talks to me about getting them removed. she tells me to change if my shirt it to revealing and my scars are visible. the need to hide my failure to hide my secret is very important to her. today i happened to put on a shirt that is a bit big and so the scars on my chest are very visible.. i cant hide them because my shirt keeps falling down . but i keep seeing them and i look at them and wonder if i should be ashamed. if u should feel upset about them. today i feel neither happy or sad about the scars. they are there and have been there for years. i doubt they will fade anymore than they have. but do i have to hide them? i know we arent in a place yet to be able to say it is a past issue but we are close...but umm i dont know. just needed to get some of the thoughts out of the head