My back is killing me and it has been since pregnancy. My ob said it was just normal pregnancy aches that you get in pregnancy esp subsequent ones. Anyway it still ached 2 months after having my son and I saw a physio she said it was just the relaxin hormones and gave me a good massage and said it should get better soon. However it's more than 7 months since giving birth and it still aches it's the centre of my back. Is this normal? Has anyone else had this? I am pretty fit at the moment I go to the gym 5-6 times a week and am losing the baby weight slowly.