My lower back hurts when i bend  my back backwards i can feel the pressure in my lower back. Also when I carry something or have my little one on my back i can feel it. I don’t have the worlds best posture and this is probably why i feel like this. The other day when i was at work i kept getting this shooting burning pain in my right bum cheek it lasted all day but eventually went away the next day. Should i be concerned or should i just try correct my posture and look after my back a little more.