Dc is 19 months old. Dh was looking after Dc and I was upstairs. Dc pushed a chair to get to the windowsill, and he was standing on the windowsill and according to dh he lost his footing and fell to the floor. Dh says it happens so fast and the couch was blocking his view he doesn't know the details of the position he landed in, he thinks he landed back first. Dc cried initially when he fell but calmed down after a minute and a few cuddles. I checked his head and back and can't find any bumps and he doesn't cry or anything when I touch his head and back. He seems fine now and it playing as usual. I think we should call 111 to get advice, dh thinks we should just monitor him to make sure he isn't sick or lose consciousness. Would it be a waste of nhs time to call 111?