Life stress and my anxiety issues have made me look too skinny iin

Not knowing your height, I can't calculate your BMI (body mass index), so I have no way of knowing if 58 kilograms is a healthy weight for you or not. Either way, anxiety about weight and looks is normal. Maybe it's the way you dress? That makes you look thin? Unless you took nude photos, the clothes you wear will affect the way you look. Typically baggy clothes make you look thinner. Tight clothes draw attention to your curves, and make you look thiccer. It can be that simple.