I'm absolutely distraught that I let this happen but DS (11 months) was playing in his room after waking up and having nappy change, I went to get calpol from my room as he has a cold and was due a dose. I had closed the safety gate on stairs but it must not have clicked fully into place. I'm so angry at myself for not closing it properly. He crawled out and I heard the twang of metal so went running out but wasn't fast enough and I could already hear him falling and couldn't stop him. He seemed to mostly slide down on his tummy. He started crying immediately and I picked him up to check him. I burst into tears which made himcry more but we both calmed down and he is playing as normal and seemsfine. I don't know if I should get him checked out and I'm shaking I think I'm in shock and not thinking clearly, should I take him?