My ds was 1 last week an is turning from an ultra happy baby into a tantrum throwing 1 year old !! Some one assure me this won't last forever ! He was always laughing and smiling and everyone used to comment on it but no if you tell him no or that there is no more food he cries and throws himself on the floor. Although its usually forgotten within a couple of minutes I still find it heat breaking ( first time mum, can you tell ?) I really hope this is just a phase ?