Yes, My Husband Tells Me Today That He Had A

yes, my husband tells me today that he had a hard blow to the top of his head last night while working, after he came home he was irritable, then very quiet and had no idea why I was angry at him in return. Today, he states that he spoke to two separate people who stated that he had full conversations with yesterday and he has absolutely no memory recall of the conversations. Should I take him to the Emergency department.