Aiyo, 22 weeks and the back pain is hitting hard, I feel you, mama! At this stage your body is changing so much, the weight distribution is shifting and hormones are making everything looser, so back pain is super common but definitely painful. A few of my mum friends swear by a maternity support belt (changed their life honestly), plus stretching gently and making sure your pillow setup is good when you sleep, sleeping on your left side with a pillow between the knees helps. But since you're in proper pain, best to mention it to your doctor or gynae next time, just to rule out anything and maybe get some proper advice on safe ways to manage it during pregnancy, okay?