Dear Grandma Lu, don't be overly concerned, she is just finding out that she can do something about things she doesn't like. Its amazing how young children/babaies can be when they realise they have a will to do something! My daughter used to scream her little lungs out, or wave her arms around, inevitably scratching my face. It is nothing personal, she is just asserting her authority at an early age. She likes being naked and she knows when she is hungry and this is her way of telling you things. She will grow out of it when she learns to express herself in a different way, bear with it and you will get all the love and affection that Grandma's deserve. But they can be little toads, doesn't mean that they will stay like that, just be calm so that she has nothing to feed off of. My dad always remained calm with mine and it soon wore off, now they are joined at the hip!
good luck xx