Tantrums and Tiaras

Is it too young for an almost 7 month old to throw temper tantrums?? The last couple days Sophia has been testing out this new form of expression. As soon as I start to dress her or change her diaper or if she is simply bored with a toy she throws a hissy fit. Her face goes beat red and cries a 'life is so unfair' cry. She usually stops within a minute or so after I distract her with something exciting like my hoodie string. It kills me that she goes from such an intense cry to a peaceful angelic baby within seconds. It is somewhat humorous. I hope this phase is a short one. I thought tantrums didn't occur until later in life I guess I was naive in thinking that.

"I don't know what you are talking about mommy. I am always a sweet angel baby!" - Sophia