A sick stomache or hopeless weird ???

Ok.Now its official !!!Sam definitely lost his mind !!!
I mean ,yes I know hes sometimes a bit strange but this sort of strangeness is NORMAL and the sort of strangeness from this night and this morning is NOT NORMAL !!!
He behave like hes a three year old boy who don´t know anything ,and I, I´m the mother who speak with a slow, calm voice to explain him everything.
But theres just one problem....
The time when he was three years old is 14 years over.
Now hes seventeen, goes to college and is also a father .
E.g. this morning as I said "Roof did well though" he looked like he had no idea about who I was talking about. What would you do if the father of your baby don´t know the name of his own son ....Poor Rufus!
I really hope these are just the results of his sick stomache and that he will feel much more better tomorrow.