Stomach pain and back pain

Hi I am at week 24 currently but could not sleep tonight due to weird stomach pain especially when i tried to lie on my left side or right side. I feel least pain when I lie flat on bed. Could not sleep because of this. Felt abit like cramping. Back feeling a bit achy as well. Is this normal? About two weeks back I could not lie on my left side as well and doc said it was muscular pain reason. But today the abdomen felt pain when I lie on my sides as well. #advicepls #firstbaby