Good evening! Girls, could you please tell me if anyone has lower back…

Good evening! Girls, could you please tell me if anyone has lower back pain? I started having lower back pain when my baby was three months old. A neurologist prescribed injections and shocks but there's still no results. It still hurts as I lift my daughter and so on. During pregnancy it didn't hurt like this. A year ago an X-ray showed lumbar chondrosis. But why wasn't an X-ray ordered then? Can I get an X-ray during breastfeeding? What have others been treated for?