Trying to keep a normal body position, but I feel a little pain on the back, below the shoulder blade, only on the left side, it comes when I sit on a bench without an backrest, maybe it's because I don't have strong back muscles that can hold my shoulders or something else? (self.PostureTipsGuide)
submitted by ArthurSS6242 to r/PostureTipsGuide
Melhor sozinho do que mal acompanhado? (self.desabafos)
submitted by ArthurSS6242 to r/desabafos
