I almost broke the baby! He was standing holding on to coffee table and I knew he would fall as he almost always does but I thought it's ok it's only carpet and he will never learn not to fall if I hover over him, so I pottered around while he played and banged and eventually the inevidable happened and he fell. He screamed and screamed and just wouldnt calm down, I checked head and body but couldnt see any problems. I ended up putting him in bed as it was close to nap time and I assumed he was just tired and therefore a bit sensitive. When he woke from his nap his left arm was hanging limply and when I tried to put a sweater on he screamed again. Took him straight down to dr, who says it is most likely a strain and he may favour it for a while...I knew he would fall and I let him, poor ds, what a mean mum