Pain in left side of my back

Tonight while watching TV and my little boy is asleep, I suddenly felt pain in my left side of my back. When I move my little boy to his sleeping area, it's really so much pain and it's hard to bend over. My husband told me, because you carried a lot of groceries this afternoon. Yes I did because I thought that's OK for me. I carried a case of water which has 36 bottles with 12 oz. each. Also some bags in my right hand. My husband told me not to do it but I was hard headed and ignored him. Now he has the right to blamed me for this pain. I hope this pain is gone very soon.