In March last year, I tripped over one of my two spaniels and fell down the stairs from top to bottom and was knocked unconcious at the back of my head. It was glued together and 'fixed'. In the worry about my head I had forgotten to mention that I hat effectively skinned part of my leg which became severely infected and the strong antibiotics resulted in nausea and a lack of appetite....the leg is gravely scarred and it is what it is as people say, but having lost three and a half stone (I was overweight) and developing a new attitude to food...i.e make it light and only when craved in small doses....could this possibly be down to that?

Can a knock to the head do this? It entirely changed what I wanted to eat.